tests/ui: remove workaround for broken revisioned run-rustfix test

Author: jieyouxu

tests/ui/object-safety/bare-trait-dont-suggest-dyn.new.fixed

@@ -2,8 +2,6 @@
 //@[old] edition:2015
 //@[new] edition:2021
 //@[new] run-rustfix
-// FIXME: the test suite tries to create a crate called `bare_trait_dont_suggest_dyn.new`
-#![crate_name="bare_trait_dont_suggest_dyn"]
 #![deny(bare_trait_objects)]
 fn ord_prefer_dot(s: String) -> impl Ord {
     //~^ ERROR the trait `Ord` cannot be made into an object

tests/ui/object-safety/bare-trait-dont-suggest-dyn.new.stderr

@@ -1,5 +1,5 @@
 error[E0038]: the trait `Ord` cannot be made into an object
-  --> $DIR/bare-trait-dont-suggest-dyn.rs:8:33
+  --> $DIR/bare-trait-dont-suggest-dyn.rs:6:33
    |
 LL | fn ord_prefer_dot(s: String) -> Ord {
    |                                 ^^^ `Ord` cannot be made into an object

tests/ui/object-safety/bare-trait-dont-suggest-dyn.old.stderr

@@ -1,13 +1,13 @@
 error: trait objects without an explicit `dyn` are deprecated
-  --> $DIR/bare-trait-dont-suggest-dyn.rs:8:33
+  --> $DIR/bare-trait-dont-suggest-dyn.rs:6:33
    |
 LL | fn ord_prefer_dot(s: String) -> Ord {
    |                                 ^^^
    |
    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
 note: the lint level is defined here
-  --> $DIR/bare-trait-dont-suggest-dyn.rs:7:9
+  --> $DIR/bare-trait-dont-suggest-dyn.rs:5:9
    |
 LL | #![deny(bare_trait_objects)]
    |         ^^^^^^^^^^^^^^^^^^
@@ -17,7 +17,7 @@ LL | fn ord_prefer_dot(s: String) -> dyn Ord {
    |                                 +++
 
 error[E0038]: the trait `Ord` cannot be made into an object
-  --> $DIR/bare-trait-dont-suggest-dyn.rs:8:33
+  --> $DIR/bare-trait-dont-suggest-dyn.rs:6:33
    |
 LL | fn ord_prefer_dot(s: String) -> Ord {
    |                                 ^^^ `Ord` cannot be made into an object

tests/ui/object-safety/bare-trait-dont-suggest-dyn.rs

@@ -2,8 +2,6 @@
 //@[old] edition:2015
 //@[new] edition:2021
 //@[new] run-rustfix
-// FIXME: the test suite tries to create a crate called `bare_trait_dont_suggest_dyn.new`
-#![crate_name="bare_trait_dont_suggest_dyn"]
 #![deny(bare_trait_objects)]
 fn ord_prefer_dot(s: String) -> Ord {
     //~^ ERROR the trait `Ord` cannot be made into an object