inetutils: Remove obsolete tools

Remove the obsolete tools rexec, rsh, rlogin, rcp, talk and ifconfig.

Note, that rexec, rsh, rlogin and rcp were installed setuid-root, so
removing them decreases our attack surface.

inetutils.be0

@@ -29,7 +29,13 @@ mee_configure() {
     bee_configure \
         --disable-logger \
         --disable-traceroute \
-        --disable-servers
+        --disable-servers \
+        --disable-rexec \
+        --disable-rsh \
+        --disable-rlogin \
+        --disable-rcp \
+        --disable-talk \
+        --disable-ifconfig
 }
 
 #mee_build() {