Rollup merge of rust-lang#73124 - ayushmishra2005:correction_in_explanation_of_E0207, r=petrochenkov

Removed lifetime parameters from Explanation of E0207

Removed lifetime parameters from Explanation of E0207
Fixes rust-lang#62144

Author: Dylan-DPC

src/librustc_error_codes/error_codes/E0207.md

@@ -1,4 +1,4 @@
-A type or lifetime parameter that is specified for `impl` is not constrained.
+A type parameter that is specified for `impl` is not constrained.
 
 Erroneous code example:
 
@@ -14,7 +14,7 @@ impl<T: Default> Foo {
 }
 ```
 
-Any type parameter or lifetime parameter of an `impl` must meet at least one of
+Any type parameter parameter of an `impl` must meet at least one of
 the following criteria:
 
  - it appears in the _implementing type_ of the impl, e.g. `impl<T> Foo<T>`