[WebAssembly] Don't emit .import_global for the wasm target.

.import_global is used by the ELF-based target and not needed by the wasm
target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319796 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed