doc: remove repeated line from short help

crates/uv-cli/src/lib.rs

@@ -3175,7 +3175,7 @@ pub enum ToolCommand {
     /// Packages are installed into an ephemeral virtual environment in the uv
     /// cache directory.
     #[command(
-        about = "Run a command provided by a Python package. Also available via the alias `uvx`.",
+        about = "Also available via the alias `uvx`.",
         after_help = "You can also use `uvx` as an alias for `uv tool run`. \n\
         Use `uv help tool run` for more details."
     )]