[clang] NFC, simplify the shouldLifetimeExtendThroughPath.

Author: hokein

clang/lib/Sema/CheckExprLifetime.cpp

@@ -1091,14 +1091,13 @@ enum PathLifetimeKind {
 /// supposed to lifetime-extend along.
 static PathLifetimeKind
 shouldLifetimeExtendThroughPath(const IndirectLocalPath &Path) {
-  PathLifetimeKind Kind = PathLifetimeKind::Extend;
   for (auto Elem : Path) {
     if (Elem.Kind == IndirectLocalPathEntry::DefaultInit)
       return PathLifetimeKind::Extend;
-    else if (Elem.Kind != IndirectLocalPathEntry::LambdaCaptureInit)
+    if (Elem.Kind != IndirectLocalPathEntry::LambdaCaptureInit)
       return PathLifetimeKind::NoExtend;
   }
-  return Kind;
+  return PathLifetimeKind::Extend;
 }
 
 /// Find the range for the first interesting entry in the path at or after I.