Utilities/Release: Remove unused linux/x86_64/test/cache-ninja.txt

Utilities/Release/linux/x86_64/test/cache-ninja.txt

@@ -1,4 +0,0 @@
-CMAKE_Fortran_COMPILER:STRING=
-CMake_TEST_IPO_WORKS_C:BOOL=ON
-CMake_TEST_IPO_WORKS_CXX:BOOL=ON
-CMake_TEST_Qt5:BOOL=ON