Revert "[test-suite] Use CMAKE_C_COMPILER as TEST_SUITE_HOST_CC when compiling test-suite tools."

This reverts commit e736520bca4886486bb7babcd256a844377e2913.

Reverting as this causes failures seen in https://green.lab.llvm.org/green/job/lnt-ctmark-aarch64-O0-g/11207/.
1 file changed