Remove unnecessary files in testing folder

test/4_Lulesh/CMakeCache.txt

test/4_Lulesh/CMakeFiles/3.20.2/CMakeCXXCompiler.cmake

...ulesh/CMakeFiles/3.20.2/CMakeDetermineCompilerABI_CXX.bin

test/4_Lulesh/CMakeFiles/3.20.2/CMakeSystem.cmake

...sh/CMakeFiles/3.20.2/CompilerIdCXX/CMakeCXXCompilerId.cpp

test/4_Lulesh/CMakeFiles/3.20.2/CompilerIdCXX/a.out

test/4_Lulesh/CMakeFiles/CMakeDirectoryInformation.cmake

test/4_Lulesh/CMakeFiles/CMakeOutput.log

test/4_Lulesh/CMakeFiles/FindOpenMP/OpenMPCheckVersion.cpp

test/4_Lulesh/CMakeFiles/FindOpenMP/OpenMPTryFlag.cpp

test/4_Lulesh/CMakeFiles/FindOpenMP/ompver_CXX.bin

test/4_Lulesh/CMakeFiles/Makefile.cmake

test/4_Lulesh/CMakeFiles/Makefile2

test/4_Lulesh/CMakeFiles/Progress/1

test/4_Lulesh/CMakeFiles/Progress/2

test/4_Lulesh/CMakeFiles/Progress/3

test/4_Lulesh/CMakeFiles/Progress/4

test/4_Lulesh/CMakeFiles/Progress/5

test/4_Lulesh/CMakeFiles/Progress/count.txt

test/4_Lulesh/CMakeFiles/TargetDirectories.txt