fix small grammatical nit

Author: Erk-

clippy_lints/src/rest_when_destructuring_struct.rs

@@ -81,7 +81,7 @@ impl<'tcx> LateLintPass<'tcx> for RestWhenDestructuringStruct {
             }
 
             let message = if a.variants()[vid].fields.is_empty() {
-                "consider remove rest pattern (`..`)"
+                "consider removing the rest pattern (`..`)"
             } else if fields.is_empty() {
                 "consider explicitly ignoring fields with wildcard patterns (`x: _`)"
             } else {

tests/ui/rest_when_destructuring_struct.stderr

@@ -42,7 +42,7 @@ error: struct destructuring with rest (`..`)
 LL |         E::C { .. } => (),
    |         ^^^^^^^^^^^
    |
-help: consider remove rest pattern (`..`)
+help: consider removing the rest pattern (`..`)
    |
 LL -         E::C { .. } => (),
 LL +         E::C {  } => (),