tests: remove .with_threads

- with_threads is useless as it is set unconditionally for tests
- multithreading tests work without tbb anyways

diff --git a/tests/base/exception_nothrow.with_threads=on.debug.output b/tests/base/exception_nothrow.debug.output
similarity index 100%
rename from tests/base/exception_nothrow.with_threads=on.debug.output
rename to tests/base/exception_nothrow.debug.output

diff --git a/tests/base/function_parser_04.with_muparser=true.with_threads=true.output b/tests/base/function_parser_04.with_muparser=true.output
similarity index 100%
rename from tests/base/function_parser_04.with_muparser=true.with_threads=true.output
rename to tests/base/function_parser_04.with_muparser=true.output

diff --git a/tests/base/generate_normal_random_number_01.with_threads=on.output b/tests/base/generate_normal_random_number_01.output
similarity index 100%
rename from tests/base/generate_normal_random_number_01.with_threads=on.output
rename to tests/base/generate_normal_random_number_01.output

diff --git a/tests/base/generate_normal_random_number_01.with_threads=on.output_boost-1.64.0 b/tests/base/generate_normal_random_number_01.output_boost-1.64.0
similarity index 100%
rename from tests/base/generate_normal_random_number_01.with_threads=on.output_boost-1.64.0
rename to tests/base/generate_normal_random_number_01.output_boost-1.64.0

diff --git a/tests/multithreading/task_01.with_threads=on.output b/tests/multithreading/task_01.output
similarity index 100%
rename from tests/multithreading/task_01.with_threads=on.output
rename to tests/multithreading/task_01.output

diff --git a/tests/multithreading/task_01_exception.with_threads=on.output b/tests/multithreading/task_01_exception.output
similarity index 100%
rename from tests/multithreading/task_01_exception.with_threads=on.output
rename to tests/multithreading/task_01_exception.output

diff --git a/tests/multithreading/task_01_exception_02.with_threads=on.output b/tests/multithreading/task_01_exception_02.output
similarity index 100%
rename from tests/multithreading/task_01_exception_02.with_threads=on.output
rename to tests/multithreading/task_01_exception_02.output

diff --git a/tests/multithreading/task_02.with_threads=on.output b/tests/multithreading/task_02.output
similarity index 100%
rename from tests/multithreading/task_02.with_threads=on.output
rename to tests/multithreading/task_02.output

diff --git a/tests/multithreading/task_03.with_threads=on.output b/tests/multithreading/task_03.output
similarity index 100%
rename from tests/multithreading/task_03.with_threads=on.output
rename to tests/multithreading/task_03.output

diff --git a/tests/multithreading/task_04.with_threads=on.output b/tests/multithreading/task_04.output
similarity index 100%
rename from tests/multithreading/task_04.with_threads=on.output
rename to tests/multithreading/task_04.output

diff --git a/tests/multithreading/task_06.with_threads=on.output b/tests/multithreading/task_06.output
similarity index 100%
rename from tests/multithreading/task_06.with_threads=on.output
rename to tests/multithreading/task_06.output

diff --git a/tests/multithreading/task_07.with_threads=on.output b/tests/multithreading/task_07.output
similarity index 100%
rename from tests/multithreading/task_07.with_threads=on.output
rename to tests/multithreading/task_07.output

diff --git a/tests/multithreading/task_08.with_threads=on.output b/tests/multithreading/task_08.output
similarity index 100%
rename from tests/multithreading/task_08.with_threads=on.output
rename to tests/multithreading/task_08.output

diff --git a/tests/multithreading/task_10.with_threads=on.output b/tests/multithreading/task_10.output
similarity index 100%
rename from tests/multithreading/task_10.with_threads=on.output
rename to tests/multithreading/task_10.output

diff --git a/tests/multithreading/task_12.with_threads=on.output b/tests/multithreading/task_12.output
similarity index 100%
rename from tests/multithreading/task_12.with_threads=on.output
rename to tests/multithreading/task_12.output

diff --git a/tests/multithreading/task_12_capture.with_threads=on.output b/tests/multithreading/task_12_capture.output
similarity index 100%
rename from tests/multithreading/task_12_capture.with_threads=on.output
rename to tests/multithreading/task_12_capture.output

diff --git a/tests/multithreading/task_13.with_threads=on.output b/tests/multithreading/task_13.output
similarity index 100%
rename from tests/multithreading/task_13.with_threads=on.output
rename to tests/multithreading/task_13.output

diff --git a/tests/multithreading/task_group_size.with_threads=on.output b/tests/multithreading/task_group_size.output
similarity index 100%
rename from tests/multithreading/task_group_size.with_threads=on.output
rename to tests/multithreading/task_group_size.output

diff --git a/tests/multithreading/thread_12.with_threads=on.output b/tests/multithreading/thread_12.output
similarity index 100%
rename from tests/multithreading/thread_12.with_threads=on.output
rename to tests/multithreading/thread_12.output

diff --git a/tests/multithreading/thread_local_storage_01.with_threads=on.output b/tests/multithreading/thread_local_storage_01.output
similarity index 100%
rename from tests/multithreading/thread_local_storage_01.with_threads=on.output
rename to tests/multithreading/thread_local_storage_01.output

diff --git a/tests/multithreading/thread_local_storage_02.with_threads=on.output b/tests/multithreading/thread_local_storage_02.output
similarity index 100%
rename from tests/multithreading/thread_local_storage_02.with_threads=on.output
rename to tests/multithreading/thread_local_storage_02.output

diff --git a/tests/multithreading/thread_local_storage_03.with_threads=on.output b/tests/multithreading/thread_local_storage_03.output
similarity index 100%
rename from tests/multithreading/thread_local_storage_03.with_threads=on.output
rename to tests/multithreading/thread_local_storage_03.output

diff --git a/tests/multithreading/thread_local_storage_04.with_threads=on.output b/tests/multithreading/thread_local_storage_04.output
similarity index 100%
rename from tests/multithreading/thread_local_storage_04.with_threads=on.output
rename to tests/multithreading/thread_local_storage_04.output

diff --git a/tests/multithreading/thread_local_storage_05.with_threads=on.output b/tests/multithreading/thread_local_storage_05.output
similarity index 100%
rename from tests/multithreading/thread_local_storage_05.with_threads=on.output
rename to tests/multithreading/thread_local_storage_05.output

diff --git a/tests/multithreading/thread_local_storage_06.with_threads=on.output b/tests/multithreading/thread_local_storage_06.output
similarity index 100%
rename from tests/multithreading/thread_local_storage_06.with_threads=on.output
rename to tests/multithreading/thread_local_storage_06.output

diff --git a/tests/multithreading/thread_validity_07.with_threads=on.output b/tests/multithreading/thread_validity_07.output
similarity index 100%
rename from tests/multithreading/thread_validity_07.with_threads=on.output
rename to tests/multithreading/thread_validity_07.output

diff --git a/tests/multithreading/thread_validity_08.with_threads=on.output b/tests/multithreading/thread_validity_08.output
similarity index 100%
rename from tests/multithreading/thread_validity_08.with_threads=on.output
rename to tests/multithreading/thread_validity_08.output

diff --git a/tests/multithreading/thread_validity_09.with_threads=on.output b/tests/multithreading/thread_validity_09.output
similarity index 100%
rename from tests/multithreading/thread_validity_09.with_threads=on.output
rename to tests/multithreading/thread_validity_09.output

diff --git a/tests/multithreading/thread_validity_10.with_threads=on.output b/tests/multithreading/thread_validity_10.output
similarity index 100%
rename from tests/multithreading/thread_validity_10.with_threads=on.output
rename to tests/multithreading/thread_validity_10.output