fix: tests: ui: update error messages

Author: BennoLossin

tests/ui/compile-fail/init/colon_instead_of_arrow.stderr

@@ -14,7 +14,4 @@ error[E0308]: mismatched types
            found opaque type `impl pinned_init::PinInit<Bar>`
 note: function defined here
   --> $RUST/core/src/ptr/mod.rs
-   |
-   | pub const unsafe fn write<T>(dst: *mut T, src: T) {
-   |                     ^^^^^
    = note: this error originates in the macro `$crate::__init_internal` which comes from the expansion of the macro `pin_init` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/compile-fail/init/field_value_wrong_type.stderr

@@ -9,7 +9,4 @@ error[E0308]: mismatched types
   |
 note: function defined here
  --> $RUST/core/src/ptr/mod.rs
-  |
-  | pub const unsafe fn write<T>(dst: *mut T, src: T) {
-  |                     ^^^^^
   = note: this error originates in the macro `$crate::__init_internal` which comes from the expansion of the macro `init` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/compile-fail/init/missing_comma_with_zeroable.stderr

@@ -31,9 +31,6 @@ error[E0308]: mismatched types
             found struct `std::ops::Range<{integer}>`
 note: function defined here
   --> $RUST/core/src/ptr/mod.rs
-   |
-   | pub const unsafe fn write<T>(dst: *mut T, src: T) {
-   |                     ^^^^^
    = note: this error originates in the macro `$crate::__init_internal` which comes from the expansion of the macro `init` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0063]: missing field `b` in initializer of `Foo`

tests/ui/compile-fail/init/wrong_generics2.stderr

@@ -71,7 +71,4 @@ error[E0061]: this function takes 2 arguments but 3 arguments were supplied
   |
 note: function defined here
  --> $RUST/core/src/ptr/mod.rs
-  |
-  | pub const unsafe fn write<T>(dst: *mut T, src: T) {
-  |                     ^^^^^
   = note: this error originates in the macro `$crate::__init_internal` which comes from the expansion of the macro `init` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/compile-fail/pin_data/no_pin_on_phantompinned.stderr

@@ -30,7 +30,7 @@ error: The field `pin4` of type `PhantomPinned` only has an effect, if it has th
   |
   = note: this error originates in the macro `$crate::__pin_data` which comes from the expansion of the attribute macro `pin_data` (in Nightly builds, run with -Z macro-backtrace for more info)
 
-warning: unused imports: `PhantomPinned`, `self`
+warning: unused imports: `PhantomPinned` and `self`
  --> tests/ui/compile-fail/pin_data/no_pin_on_phantompinned.rs:2:19
   |
 2 | use std::marker::{self, PhantomPinned};