Update to the 20170122 development snapshot of GCC 7, which is now in

pre-release mode (and changed it's version number from 7.0.0 to 7.0.1
accordingly).

Remove gcc7-devel/files/patch-libc++ again, which dim@ and me managed
to get in upstream quickly.

lang/gcc7-devel/Makefile

@@ -2,7 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	gcc
-PORTVERSION=	7.0.0.s20170115
+PORTVERSION=	7.0.1.s20170122
 CATEGORIES=	lang
 MASTER_SITES=	GCC/snapshots/${DISTVERSION}
 PKGNAMESUFFIX=	${SUFFIX}-devel

lang/gcc7-devel/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1484637275
-SHA256 (gcc-7-20170115.tar.bz2) = 342cce1dc1c7d1f047dc626b07e3fc8542d462b75a9e1277d0b373d78cc6c6c5
-SIZE (gcc-7-20170115.tar.bz2) = 79813728
+TIMESTAMP = 1485156921
+SHA256 (gcc-7-20170122.tar.bz2) = 25ae837aa1de7509ad2fb33086b80d805bb913723932fcf1c717bea76c46b24c
+SIZE (gcc-7-20170122.tar.bz2) = 80021435

lang/gcc7-devel/files/patch-libc++

@@ -1,20 +0,0 @@
---- gcc/gcov.c.orig	2017-01-01 12:07:43 UTC
-+++ gcc/gcov.c
-@@ -31,6 +31,8 @@ along with Gcov; see the file COPYING3. 
-    probabilities of fall through arcs.  */
- 
- #include "config.h"
-+#define INCLUDE_ALGORITHM
-+#define INCLUDE_VECTOR
- #include "system.h"
- #include "coretypes.h"
- #include "tm.h"
-@@ -41,8 +43,6 @@ along with Gcov; see the file COPYING3. 
- 
- #include <getopt.h>
- 
--#include <vector>
--#include <algorithm>
- #include "md5.h"
- 
- using namespace std;