mic-configure: do not set LD when using icc

mic-configure

@@ -63,7 +63,6 @@ do
 	if [ $compiler = "icc" -a "$arch" = "mic" ] ; then
 	    export CC="icc -mmic"
 	    export CXX="icc -mmic"
-	    export LD="icc -mmic"
 	fi
 
 	params="--enable-mic --with-coi-dir=$coi_dir --with-scif-dir=$scif_dir --prefix=$prefix/$arch"