Merge pull request #22393 from nkcsgexi/toolchain-ver-drop

cmake: avoid passing toolchain version via -Wl when linking SwiftSyntax parser

Author: nkcsgexi

tools/libSwiftSyntaxParser/CMakeLists.txt

@@ -22,8 +22,6 @@ add_link_opts(libSwiftSyntaxParser)
 
 if (SWIFT_LIBPARSER_VER)
   set(SWIFTSYNTAX_PARSER_VERSION_STRING "${SWIFT_LIBPARSER_VER}")
-elseif (DARWIN_TOOLCHAIN_VERSION)
-  set(SWIFTSYNTAX_PARSER_VERSION_STRING "${DARWIN_TOOLCHAIN_VERSION}")
 else()
   set(SWIFTSYNTAX_PARSER_VERSION_STRING "${SWIFT_COMPILER_VERSION}")
 endif()