r|v.external: remove unused keyword

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@57157 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.external/main.c

@@ -54,7 +54,6 @@ int main(int argc, char *argv[])
     module = G_define_module();
     G_add_keyword(_("raster"));
     G_add_keyword(_("import"));
-    G_add_keyword(_("input"));
     G_add_keyword(_("external"));
     module->description =
 	_("Links GDAL supported raster data as a pseudo GRASS raster map.");

vector/v.external/main.c

@@ -47,7 +47,6 @@ int main(int argc, char *argv[])
     module = G_define_module();
     G_add_keyword(_("vector"));
     G_add_keyword(_("import"));
-    G_add_keyword(_("input"));
     G_add_keyword(_("external")); 
     G_add_keyword("OGR");
     G_add_keyword("PostGIS");