[lld] [ELF] Fix unnecessary inclusion of unreferenced provide symbols (PR #84512)

[via llvm-commits]

================
@@ -1518,3 +1513,50 @@ void LinkerScript::checkFinalScriptConditions() const {
       checkMemoryRegion(lmaRegion, sec, sec->getLMA());
   }
 }
+
+// Add symbols referred by the provide symbol to the symbol table.
----------------
partaror wrote:

Done.

https://github.com/llvm/llvm-project/pull/84512