ScriptInterpreterPython cleanup

Instead of #ifdef-ing the contents of all files in the plugin for all
non-python builds, just disable the plugin at the cmake level. Also,
remove spurious extra linking of the Python plugin in liblldb. This
plugin is already included as a part of LLDB_ALL_PLUGINS variable.

llvm-svn: 335236

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

@@ -1,5 +1,4 @@
-//===-- PythonDataObjects.cpp ------------------------------------*- C++
-//-*-===//
+//===-- PythonDataObjects.cpp -----------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -8,12 +7,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifdef LLDB_DISABLE_PYTHON
-
-// Python is disabled in this build
-
-#else
-
 #include "PythonDataObjects.h"
 #include "ScriptInterpreterPython.h"
 
@@ -1035,5 +1028,3 @@ bool PythonFile::GetUnderlyingFile(File &file) const {
   file.SetOptions(PythonFile::GetOptionsFromMode(py_mode.GetString()));
   return file.IsValid();
 }
-
-#endif