Remove FromEnv(ProjectionEq(...)) from tests

Author: scalexm

src/test/ui/chalkify/lower_trait_higher_rank.stderr

@@ -4,10 +4,10 @@ error: program clause dump
 LL | #[rustc_dump_program_clauses] //~ ERROR program clause dump
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
-   = note: FromEnv(<F as std::ops::FnOnce<(&'a (u8, u16),)>>::Output == &'a u8) :- FromEnv(Self: Foo<F>).
    = note: FromEnv(F: std::marker::Sized) :- FromEnv(Self: Foo<F>).
    = note: FromEnv(F: std::ops::Fn<(&'a (u8, u16),)>) :- FromEnv(Self: Foo<F>).
    = note: Implemented(Self: Foo<F>) :- FromEnv(Self: Foo<F>).
+   = note: ProjectionEq(<F as std::ops::FnOnce<(&'a (u8, u16),)>>::Output == &'a u8) :- FromEnv(Self: Foo<F>).
 
 error: aborting due to previous error