Tests/RunCMake/TIClang: Remove unused link flags from test cases

Typos in commit 9ba0a54554 (TIClang: Add support for TI Clang-based
compilers, including tiarmclang, 2023-12-06, v3.29.0-rc1~4^2~1)
left the flags unused.  In particular, `CMAKE_<LANG>_LINKER_FLAGS`
does not exist.
5 files changed