Remove some now-unneeded calls to llvm::errs().flush().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66555 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index bcd1a86..c52eb7e 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -1223,9 +1223,7 @@
 //===----------------------------------------------------------------------===//
 
 void Stmt::dumpPretty() const {
-  llvm::raw_ostream &OS = llvm::errs();
-  printPretty(OS);
-  OS.flush();
+  printPretty(llvm::errs());
 }
 
 void Stmt::printPretty(llvm::raw_ostream &OS, PrinterHelper* Helper,