Partially revert r335236

Jim pointed out that XCode has build configurations that build without
python and removing the ifdefs around the python code breaks them.

This reverts the #ifdef part of the above patch, while keeping the cmake
parts.

llvm-svn: 335260

lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h

@@ -10,6 +10,8 @@
 #ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONDATAOBJECTS_H
 #define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONDATAOBJECTS_H
 
+#ifndef LLDB_DISABLE_PYTHON
+
 // LLDB Python header must be included first
 #include "lldb-python.h"
 
@@ -468,3 +470,5 @@ public:
 } // namespace lldb_private
 
 #endif
+
+#endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_PYTHONDATAOBJECTS_H