Remove unit test only flag.

Author: AlyElashram

libc/cmake/modules/LLVMLibCTestRules.cmake

@@ -884,7 +884,6 @@ function(add_libc_multi_impl_test name suite)
       string(SUBSTRING ${fq_config_name} ${name_loc} -1 target_name)
       add_libc_test(
         ${target_name}_test
-        ${unit_test_only}
         SUITE
           ${suite}
         COMPILE_OPTIONS

libc/test/src/string/CMakeLists.txt

@@ -383,7 +383,7 @@ add_libc_test(
     libc.src.string.memset_explicit
 )
 
-add_libc_multi_impl_test(memcmp libc-string-tests SRCS UNIT_TEST_ONLY memcmp_test.cpp)
-add_libc_multi_impl_test(memcpy libc-string-tests SRCS UNIT_TEST_ONLY memcpy_test.cpp)
-add_libc_multi_impl_test(memmove libc-string-tests SRCS UNIT_TEST_ONLY memmove_test.cpp)
-add_libc_multi_impl_test(memset libc-string-tests SRCS UNIT_TEST_ONLY memset_test.cpp)
+add_libc_multi_impl_test(memcmp libc-string-tests SRCS memcmp_test.cpp)
+add_libc_multi_impl_test(memcpy libc-string-tests SRCS memcpy_test.cpp)
+add_libc_multi_impl_test(memmove libc-string-tests SRCS memmove_test.cpp)
+add_libc_multi_impl_test(memset libc-string-tests SRCS memset_test.cpp)