Revert "gn build: (manually) merge b5913e6d2f"

This reverts commit c52efdc52cef2597a1d21595a9685e2f798025b8,
because b5913e6d2f got reverted.

utils/gn/secondary/llvm/tools/llvm-objcopy/BUILD.gn

@@ -2,11 +2,6 @@ import("//llvm/tools/binutils_symlinks.gni")
 import("//llvm/utils/TableGen/tablegen.gni")
 import("//llvm/utils/gn/build/symlink_or_copy.gni")
 
-tablegen("InstallNameToolOpts") {
-  visibility = [ ":llvm-objcopy" ]
-  args = [ "-gen-opt-parser-defs" ]
-}
-
 tablegen("ObjcopyOpts") {
   visibility = [ ":llvm-objcopy" ]
   args = [ "-gen-opt-parser-defs" ]
@@ -17,10 +12,7 @@ tablegen("StripOpts") {
   args = [ "-gen-opt-parser-defs" ]
 }
 
-symlinks = [
-  "llvm-install-name-tool",
-  "llvm-strip",
-]
+symlinks = [ "llvm-strip" ]
 if (llvm_install_binutils_symlinks) {
   symlinks += [
     "objcopy",
@@ -47,7 +39,6 @@ group("symlinks") {
 
 executable("llvm-objcopy") {
   deps = [
-    ":InstallNameToolOpts",
     ":ObjcopyOpts",
     ":StripOpts",
     "//llvm/lib/MC",