Revert "stdenvBootstrapTools: fix build by fetching pie fix commit"

Preparing to move this patch into regular gcc.

This reverts commit 200b5eb08a.

pkgs/stdenv/linux/make-bootstrap-tools.nix

@@ -47,21 +47,10 @@ rec {
     '';
   };
 
-  bootGCC =
-    (pkgs.gcc.cc.override {
-      enableLTO = false;
-      isl = null;
-    }).overrideAttrs
-      (old: {
-        patches = old.patches or [ ] ++ [
-          (pkgs.fetchpatch {
-            # c++tools: Don't check --enable-default-pie.
-            # --enable-default-pie breaks bootstrap gcc otherwise, because libiberty.a is not found
-            url = "https://github.com/gcc-mirror/gcc/commit/3f1f99ef82a65d66e3aaa429bf4fb746b93da0db.patch";
-            hash = "sha256-wKVuwrW22gSN1woYFYxsyVk49oYmbogIN6FWbU8cVds=";
-          })
-        ];
-      });
+  bootGCC = pkgs.gcc.cc.override {
+    enableLTO = false;
+    isl = null;
+  };
 
   bootBinutils = pkgs.binutils.bintools.override {
     withAllTargets = false;