remove some extraneous casts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100287 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index 6dce5cc..6f1448b 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -158,7 +158,7 @@
   if (!TheTarget)
     return 1;
 
-  llvm::OwningPtr<MCAsmInfo> MAI((MCAsmInfo*) TheTarget->createAsmInfo(TripleName));
+  llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
   assert(MAI && "Unable to create target asm info!");
 
   AsmLexer Lexer(*MAI);
@@ -266,7 +266,7 @@
   SrcMgr.setIncludeDirs(IncludeDirs);
   
   
-  llvm::OwningPtr<MCAsmInfo> MAI((MCAsmInfo*) TheTarget->createAsmInfo(TripleName));
+  llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
   assert(MAI && "Unable to create target asm info!");
   
   MCContext Ctx(*MAI);