Use delete[] to match new[] (found by valgrind).

llvm-svn: 80997
diff --git a/llvm/lib/CodeGen/ExactHazardRecognizer.cpp b/llvm/lib/CodeGen/ExactHazardRecognizer.cpp
index 0ea0968..057d7ef 100644
--- a/llvm/lib/CodeGen/ExactHazardRecognizer.cpp
+++ b/llvm/lib/CodeGen/ExactHazardRecognizer.cpp
@@ -54,7 +54,7 @@
 }
 
 ExactHazardRecognizer::~ExactHazardRecognizer() {
-  delete Scoreboard;
+  delete [] Scoreboard;
 }
 
 void ExactHazardRecognizer::Reset() {