Remove the separately compiled test for Benchmarking Macros

Thanks to the changes to compilation model, the tests for benchmarking
macros have been made part of the normal test run. This means that
the only purpose these separately compiled tests served was to waste
CI time.

tests/ExtraTests/CMakeLists.txt

@@ -119,18 +119,6 @@ set_tests_properties(
 )
 
 
-add_executable(BenchmarkingMacros ${TESTS_DIR}/X20-BenchmarkingMacros.cpp)
-target_link_libraries( BenchmarkingMacros Catch2_buildall_interface )
-
-add_test(NAME BenchmarkingMacros COMMAND BenchmarkingMacros -r console -s)
-set_tests_properties(
-    BenchmarkingMacros
-  PROPERTIES
-    PASS_REGULAR_EXPRESSION "benchmark name                                  samples       iterations    estimated"
-    COST 80 # We know that this is either the most, or second most,
-   # expensive test in the test suite, so we give it high estimate for CI runs
-)
-
 # This test touches windows.h, so it should only be compiled under msvc
 if (MSVC)
     # This test fails if it does not compile and succeeds otherwise
@@ -158,7 +146,6 @@ set( EXTRA_TEST_BINARIES
     DisabledExceptions-CustomHandler
     FallbackStringifier
     DisableStringification
-    BenchmarkingMacros
 #    DebugBreakMacros
 )