Merge pull request #5630 from apple/synfonia

Remove libSyntax Gyb Target Dependency

Author: CodaFi

lldb/cmake/modules/AddLLDB.cmake

@@ -131,12 +131,6 @@ function(add_lldb_library name)
   # headers without negatively impacting much of anything.
   if(NOT LLDB_BUILT_STANDALONE)
     add_dependencies(${name} clang-tablegen-targets)
-
-    # BEGIN Swift Mods
-	if(swift IN_LIST LLVM_EXTERNAL_PROJECTS)
-      add_dependencies(${name} swift-syntax-generated-headers)
-    endif()
-    # END Swift Mods
   endif()
 
   # Add in any extra C++ compilation flags for this library.