Unmark broken on aarch64.

Submitted by:	emaste (TRYBROKEN run)
Approved by:	portmgr (tier-2 blanket)

math/reduce/Makefile

@@ -12,7 +12,6 @@ COMMENT=	Codemist Standard Lisp REDUCE general-purpose computer system
 
 LICENSE=	BSD2CLAUSE
 
-BROKEN_aarch64=		fails to install: Reduce-svn4372-src/cslbuild/aarch64-unknown-freebsd11.1/csl/reduce.img: No such file or directory
 BROKEN_armv6=		fails to compile: redfront.h:118:12: conflicting types for '__wcwidth'
 BROKEN_powerpc64=	fails to compile: arith01.cpp: 'statuc' does not name a type
 

math/reduce/files/patch-generic_newfront_redfront.h

@@ -1,14 +0,0 @@
---- generic/newfront/redfront.h.orig	2018-06-17 19:20:00 UTC
-+++ generic/newfront/redfront.h
-@@ -114,8 +114,11 @@ typedef void (*sig_t)(int);
-  * version is different...
-  */
- #ifndef NATIVE_WINDOWS
-+
- #include "sys.h"
-+#ifndef wcwidth
- extern int wcwidth(wchar_t c);
-+#endif
- #include "chartype.h"
- #endif
-