Revert of Gold: Patch linker to implement --long-plt flag. (patchset #1 id:1 of https://codereview.chromium.org/1537083003/ )

Reason for revert:
Looks like this blocks pushing new clangs to goma (maybe the new binutils weren't uploaded there?), and also didn't help with the bug it was supposed to help with. Reverting in the hope that it'll unblock clang rolls.

Original issue's description:
> Gold: Patch linker to implement --long-plt flag.
>
> Also modify script to extract binutils sources from tarball and apply
> patches unconditionally to avoid problems with later runs if a patch
> fails to apply.
>
> BUG=554017
> R=thestig@chromium.org
>
> Committed: https://crrev.com/b7b010e70c37389b4e0ee022e5fd09a7d6bb394d
> Cr-Commit-Position: refs/heads/master@{#366267}

TBR=thestig@chromium.org,pcc@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=554017

Review URL: https://codereview.chromium.org/1550453002

Cr-Original-Commit-Position: refs/heads/master@{#366770}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 1184a1d4472befc6a6076f5e2fac835b404a83d5
5 files changed