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/PythonExceptionState.cpp

@@ -7,8 +7,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLDB_DISABLE_PYTHON
-
 // LLDB Python header must be included first
 #include "lldb-python.h"
 
@@ -166,5 +164,3 @@ std::string PythonExceptionState::ReadBacktrace() const {
 
   return retval;
 }
-
-#endif