Revert "Change memcpy/memset/memmove to have dest and source alignments."

This reverts commit r253512.

This likely broke the bots in:
http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/20202
http://bb.pgr.jp/builders/clang-3stage-i686-linux/builds/3787

llvm-svn: 253542
diff --git a/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp b/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp
index 614983d..dcc0556 100644
--- a/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp
+++ b/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp
@@ -66,7 +66,7 @@
   X::X(int) : X() {}
 }
 // CHECK: define {{.*}} @_ZN7PR128901XC1Ei(%"class.PR12890::X"* %this, i32)
-// CHECK: call void @llvm.memset.p0i8.{{i32|i64}}(i8* align 4 {{.*}}, i8 0, {{i32|i64}} 4, i1 false)
+// CHECK: call void @llvm.memset.p0i8.{{i32|i64}}(i8* {{.*}}, i8 0, {{i32|i64}} 4, i32 4, i1 false)
 
 namespace PR14588 {
   void other();