small logic simplification

Author: Nadrieril

compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs

@@ -989,7 +989,6 @@ impl ConstructorSet {
                 }
             }
         }
-        let seen_any_non_wildcard = !(split.is_empty() && seen.is_empty());
         match self {
             ConstructorSet::Single => {
                 if seen.is_empty() {
@@ -1074,7 +1073,7 @@ impl ConstructorSet {
         }
         if !missing.is_empty() {
             let report_when_all_missing = is_top_level && !matches!(self, Self::Integers { .. });
-            if seen_any_non_wildcard || report_when_all_missing {
+            if !split.is_empty() || report_when_all_missing {
                 split.push(Missing);
             } else {
                 split.push(Wildcard);