[CMake] Don't automatically copy python27.dll.
[CMake] Don't automatically copy python27.dll.

This is generating problems when you have built both debug and
release python.  For now I just want to get CMake to work, I
will work on a more robust fix later.  In the meantime you may
need to copy python27(_d).dll manually to ninja\bin after
building.

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@230379 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb