Remove Offset from Common.

It is not needed since it is always 0.

llvm-svn: 313076
diff --git a/lld/ELF/LinkerScript.cpp b/lld/ELF/LinkerScript.cpp
index 3ccc2c9..ebbb8ef 100644
--- a/lld/ELF/LinkerScript.cpp
+++ b/lld/ELF/LinkerScript.cpp
@@ -872,7 +872,7 @@
     if (auto *D = dyn_cast<DefinedRegular>(B))
       return {D->Section, D->Value, Loc};
     if (auto *C = dyn_cast<DefinedCommon>(B))
-      return {C->Section, C->Offset, Loc};
+      return {C->Section, 0, Loc};
   }
   error(Loc + ": symbol not found: " + S);
   return 0;