repo-remove: add page (#12367)

pages/linux/repo-remove.md

@@ -0,0 +1,8 @@
+# repo-remove
+
+> Package database maintenance utility which removes packages from a local repository.
+> More information: <https://man.archlinux.org/man/repo-add>.
+
+- Remove a package from a local repository:
+
+`repo-remove {{path/to/database.db.tar.gz}} {{package}}`