remove duplicate test

src/test/ui/consts/const-eval/issue-52442.rs

@@ -1,4 +0,0 @@
-fn main() {
-    [();  { &loop { break } as *const _ as usize } ];
-    //~^ ERROR pointers cannot be cast to integers during const eval
-}

src/test/ui/consts/const-eval/issue-52442.stderr

@@ -1,11 +0,0 @@
-error: pointers cannot be cast to integers during const eval.
-  --> $DIR/issue-52442.rs:2:13
-   |
-LL |     [();  { &loop { break } as *const _ as usize } ];
-   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: at compile-time, pointers do not have an integer value
-   = note: avoiding this restriction via `transmute`, `union`, or raw pointers leads to compile-time undefined behavior
-
-error: aborting due to previous error
-