Remove dependency on nonexistent lit target

This just... isn't a target. Maybe you were trying to do a file
dependency? But that's handled implicitly by the find_program
call anyway, so all this is doing is generating a cmake warning


[ROCm/hip commit: 76ccda4205]

projects/hip/hipify-clang/CMakeLists.txt

@@ -84,7 +84,7 @@ if (HIPIFY_CLANG_TESTS)
     add_lit_testsuite(test-hipify "Running HIPify regression tests"
         ${CMAKE_SOURCE_DIR}/tests/hipify-clang
         PARAMS site_config=${CMAKE_CURRENT_BINARY_DIR}/tests/hipify-clang/lit.site.cfg
-        DEPENDS hipify-clang lit
+        DEPENDS hipify-clang
     )
 
     add_custom_target(test-hipify-clang)