[ASTDump] NFC: Remove redundant condition

These conditions are duplicated from the dumpDeclContext function called
within the if(). This is presumably an attempt to avoid calling the
function in the case it will do nothing.

That may have made sense in the past if the code was different, but it
doesn't make sense now.

llvm-svn: 351604

clang/lib/AST/ASTDumper.cpp

@@ -514,10 +514,7 @@ void ASTDumper::dumpDecl(const Decl *D) {
     // Decls within functions are visited by the body.
     if (!isa<FunctionDecl>(*D) && !isa<ObjCMethodDecl>(*D)) {
       auto DC = dyn_cast<DeclContext>(D);
-      if (DC &&
-          (DC->hasExternalLexicalStorage() ||
-           (Deserialize ? DC->decls_begin() != DC->decls_end()
-                        : DC->noload_decls_begin() != DC->noload_decls_end())))
+      if (DC)
         dumpDeclContext(DC);
     }
   });