Remove uninstall-lj and uninstall-rocks commands

Author: mah0x211

help.go

@@ -63,6 +63,10 @@ Commands:
     If the version of luarocks is specified along with the version of lua, the
     operation will target the specified version of the lua environment.
     Otherwise, the operation will target the current lua environment.
+
+    In case of the 'uninstall' command, if the version of luarocks is specified
+    along with the version of lua, it ignores the version specification for
+    luarocks.
 `)
 	osExit(rc)
 }