third_party: no more import path rewriting because Go 1.5

We don't rewrite import paths anymore, because we use the new vendor
mechanism that comes with Go 1.5.

Also remove misc/pre-commit.githook because of the above, and because
the rest is covered by devcam hook.

Change-Id: Iafb32e19b21d1df44b9625a5f58bf898e6b51fa8

misc/pre-commit.githook

@@ -1,61 +0,0 @@
-#!/usr/bin/env sh
-
-mode=${1:-"precommit"}
-exitstatus=0
-
-#third_party imports.
-cd third_party
-rewrite=`./rewrite-imports.sh -l`
-cd ..
-if [ -n "$rewrite" ]
-then
-	exitstatus=1
-	for r in $rewrite
-	do
-		echo $r
-	done
-	echo "The above need their imports to be fixed. Use third_party/rewrite-imports.sh -w"
-fi
-
-#gofmt and trailing space errors
-committed=`git diff-index --cached --name-only HEAD`
-needFmt=""
-for c in $committed
-do
-	if [ ! -e "$c" ]
-	then
-		continue
-	fi
-	gofile=`echo $c | grep -E '.*\.go$'`
-	javafile=`echo $c | grep -E '.*\.java$'`
-	if [ -n "$gofile" ]
-	then
-		fmtdiff=`git show ":$c" | gofmt -d 2>&1`
-		if [ -n "$fmtdiff" ]
-		then
-			needFmt="$needFmt $gofile"
-			exitstatus=1
-		fi
-	fi
-	if [ -n "$gofile" -o -n "$javafile" ]
-	then
-		trailspace=`git diff-index --cached --check HEAD $c | grep 'trailing whitespace'`
-		if [ -n "$trailspace" ]
-		then
-			echo $trailspace
-			exitstatus=1
-		fi
-	fi
-done
-if [ "$exitstatus" -ne 0 ]
-then
-	if [ -n "$needFmt" ]
-	then
-		echo "gofmt -w $needFmt"
-	fi
-	if [ "$mode" != "test" ]; then
-		echo "You can override this check with 'git commit --no-verify'"
-	fi
-fi
-
-exit $exitstatus

third_party/rewrite-imports.sh

@@ -1,28 +0,0 @@
-#!/bin/sh
-
-#TODO(mpl): patch github.com/cznic/zappy on the fly to make it pure Go.
-if [ "$1" = "-l" ]
-then
-	find . -type f -name '*.go' -exec grep -E -l '"code.google.com/' {} \;
-	find . -type f -name '*.go' -exec grep -E -l '"launchpad.net/' {} \;
-	find . -type f -name '*.go' -exec grep -E -l '"github.com/' {} \;
-	find . -type f -name '*.go' -exec grep -E -l '"labix.org/' {} \;
-	find . -type f -name '*.go' -exec grep -E -l '"bazil.org/' {} \;
-	find . -type f -name '*.go' -exec grep -E -l '"golang.org/' {} \;
-	find . -type f -name '*.go' -exec grep -E -l '"google.golang.org/' {} \;
-elif [ "$1" = "-w" ]
-then
-	find . -type f -name '*.go' -exec perl -pi -e 's!"code.google.com/!"camlistore.org/third_party/code.google.com/!' {} \;
-	find . -type f -name '*.go' -exec perl -pi -e 's!"launchpad.net/!"camlistore.org/third_party/launchpad.net/!' {} \;
-	find . -type f -name '*.go' -exec perl -pi -e 's!"github.com/!"camlistore.org/third_party/github.com/!' {} \;
-	find . -type f -name '*.go' -exec perl -pi -e 's!"labix.org/!"camlistore.org/third_party/labix.org/!' {} \;
-	find . -type f -name '*.go' -exec perl -pi -e 's!"bazil.org/!"camlistore.org/third_party/bazil.org/!' {} \;
-	find . -type f -name '*.go' -exec perl -pi -e 's!"golang.org/!"camlistore.org/third_party/golang.org/!' {} \;
-	find . -type f -name '*.go' -exec perl -pi -e 's!"google.golang.org/!"camlistore.org/third_party/google.golang.org/!' {} \;
-else
-	cat << heredoc
-usage: rewrite-imports.sh -l|-w"
-	-l: list files where a rewrite is needed"
-	-w: actually performs the rewrite"
-heredoc
-fi