Revert "Introduce symbol versioning for clang-cpp (#116556)"

This reverts commit 944478d.

Reverted because of following error on greendragon

ld: unknown options: --version-script
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Author: rastogishubham

clang/tools/clang-shlib/CMakeLists.txt

@@ -48,14 +48,6 @@ add_clang_library(clang-cpp
                   ${_OBJECTS}
                   LINK_LIBS
                   ${_DEPS})
-
-configure_file(simple_version_script.map.in simple_version_script.map)
-
-if (NOT LLVM_LINKER_IS_SOLARISLD AND NOT MINGW)
-  # Solaris ld does not accept global: *; so there is no way to version *all* global symbols
-  target_link_options(clang-cpp PRIVATE LINKER:--version-script,${CMAKE_CURRENT_BINARY_DIR}/simple_version_script.map)
-endif()
-
 # Optimize function calls for default visibility definitions to avoid PLT and
 # reduce dynamic relocations.
 if (NOT APPLE AND NOT MINGW AND NOT LLVM_LINKER_IS_SOLARISLD_ILLUMOS)

clang/tools/clang-shlib/simple_version_script.map.in

@@ -27,7 +27,7 @@ if (NOT PACKAGE_VERSION)
 endif()
 
 if(NOT DEFINED LLVM_SHLIB_SYMBOL_VERSION)
-  # "Symbol version prefix for libLLVM.so and libclang-cpp.so"
+  # "Symbol version prefix for libLLVM.so"
   set(LLVM_SHLIB_SYMBOL_VERSION "LLVM_${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}")
 endif()