Resolve renamed_and_removed_lints warning about match_on_vec_items

    warning: lint `clippy::match_on_vec_items` has been removed: `clippy::indexing_slicing` covers indexing and slicing on `Vec<_>`
      --> gen/build/src/lib.rs:60:5
       |
    60 |     clippy::match_on_vec_items,
       |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = note: `#[warn(renamed_and_removed_lints)]` on by default

    warning: lint `clippy::match_on_vec_items` has been removed: `clippy::indexing_slicing` covers indexing and slicing on `Vec<_>`
      --> gen/cmd/src/main.rs:11:5
       |
    11 |     clippy::match_on_vec_items,
       |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = note: `#[warn(renamed_and_removed_lints)]` on by default

    warning: lint `clippy::match_on_vec_items` has been removed: `clippy::indexing_slicing` covers indexing and slicing on `Vec<_>`
      --> gen/lib/src/lib.rs:22:5
       |
    22 |     clippy::match_on_vec_items,
       |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = note: `#[warn(renamed_and_removed_lints)]` on by default

Author: dtolnay

gen/build/src/lib.rs

@@ -57,7 +57,6 @@
     clippy::inherent_to_string,
     clippy::items_after_statements,
     clippy::match_bool,
-    clippy::match_on_vec_items,
     clippy::match_same_arms,
     clippy::needless_doctest_main,
     clippy::needless_lifetimes,

gen/cmd/src/main.rs

@@ -8,7 +8,6 @@
     clippy::items_after_statements,
     clippy::map_clone,
     clippy::match_bool,
-    clippy::match_on_vec_items,
     clippy::match_same_arms,
     clippy::needless_lifetimes,
     clippy::needless_pass_by_value,

gen/lib/src/lib.rs

@@ -19,7 +19,6 @@
     clippy::inherent_to_string,
     clippy::items_after_statements,
     clippy::match_bool,
-    clippy::match_on_vec_items,
     clippy::match_same_arms,
     clippy::missing_errors_doc,
     clippy::must_use_candidate,