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/ScriptInterpreterPython.h

@@ -10,6 +10,12 @@
 #ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SCRIPTINTERPRETERPYTHON_H
 #define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SCRIPTINTERPRETERPYTHON_H
 
+#ifdef LLDB_DISABLE_PYTHON
+
+// Python is disabled in this build
+
+#else
+
 // C Includes
 // C++ Includes
 #include <memory>
@@ -565,4 +571,6 @@ protected:
 
 } // namespace lldb_private
 
+#endif // LLDB_DISABLE_PYTHON
+
 #endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SCRIPTINTERPRETERPYTHON_H