Bug 1429947 - Unset WIN64_LINK and WIN64_LIB in in-tree mozconfigs during an artifact build. r=nalexander

MozReview-Commit-ID: 9mIaxs0xroN

--HG--
extra : rebase_source : 623f50f4186722d6a0da9f01bd6d57b072068bd7

build/mozconfig.no-compile

@@ -17,5 +17,7 @@ unset MAKECAB
 unset TOOLCHAIN_PREFIX
 unset BINDGEN_CFLAGS
 unset LLVM_CONFIG
+unset WIN64_LINK
+unset WIN64_LIB
 
 unset MOZ_STDCXX_COMPAT