gcc-target: remove infodir

* it uses autotools but doesn't call autotools_do_install
* fixes QA warning:
  gcc-4.8.2: The /usr/share/info/dir file is not meant to be shipped in a particular package.

(From OE-Core rev: 0b62f8b012d8a128f34bd85a26aa97ea939cbf64)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-target.inc

@@ -104,6 +104,10 @@ FILES_${PN}-doc = "\
 
 do_install () {
 	oe_runmake 'DESTDIR=${D}' install-host
+	# Info dir listing isn't interesting at this point so remove it if it exists.
+	if [ -e "${D}${infodir}/dir" ]; then
+		rm -f ${D}${infodir}/dir
+	fi
 
 	# Cleanup some of the ${libdir}{,exec}/gcc stuff ...
 	rm -r ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/install-tools