remove two lints from deprecation

Author: PunitLodha

clippy_lints/src/lib.rs

@@ -441,14 +441,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         "clippy::unstable_as_mut_slice",
         "`Vec::as_mut_slice` has been stabilized in 1.7",
     );
-    /* store.register_removed(
-        "clippy::str_to_string",
-        "using `str::to_string` is common even today and specialization will likely happen soon",
-    );
-    store.register_removed(
-        "clippy::string_to_string",
-        "using `string::to_string` is common even today and specialization will likely happen soon",
-    ); */
     store.register_removed(
         "clippy::misaligned_transmute",
         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
@@ -1934,14 +1926,6 @@ fn register_removed_non_tool_lints(store: &mut rustc_lint::LintStore) {
         "unstable_as_mut_slice",
         "`Vec::as_mut_slice` has been stabilized in 1.7",
     );
-    /* store.register_removed(
-        "str_to_string",
-        "using `str::to_string` is common even today and specialization will likely happen soon",
-    ); 
-    store.register_removed(
-        "string_to_string",
-        "using `string::to_string` is common even today and specialization will likely happen soon",
-    ); */
     store.register_removed(
         "misaligned_transmute",
         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",