graphics/glew: drop unused dependencies after 0ccfc07

* -lGLU dropped in nigels-com/glew@3828cfb38c7b
* -lXmu -lXi -lXext dropped in nigels-com/glew@d03b68e40d00

PR:		257626
Approved by:	maintainer timeout (3 weeks)

graphics/glew/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	glew
 PORTVERSION=	2.2.0
-PORTREVISION?=	1
+PORTREVISION?=	2
 CATEGORIES=	graphics
 MASTER_SITES=	SF
 
@@ -13,8 +13,8 @@ LICENSE=	MIT BSD3CLAUSE
 LICENSE_COMB=	dual
 
 USES=		gmake gl tar:tgz xorg
-USE_XORG?=	x11 xext xi xmu
-USE_GL?=	gl glu
+USE_XORG?=	x11
+USE_GL?=	gl
 USE_LDCONFIG=	yes
 
 MAKE_ENV=	GLEW_DEST=${PREFIX} GLEW_PREFIX=${PREFIX}