Revert introduction of python:defaultargs feature

See issue #294

Examples/test-suite/default_args.i

@@ -13,7 +13,7 @@
 %inline %{
   #include <string>
 
-  // All kinds of numbers: hex, octal (which pose special problems to Python (using %pythondefaultargs), negative...
+  // All kinds of numbers: hex, octal (which pose special problems to Python), negative...
   void trickyvalue1(int first, int pos = -1) {}
   void trickyvalue2(int first, unsigned rgb = 0xabcdef) {}
   void trickyvalue3(int first, int mode = 0644) {}
@@ -23,6 +23,10 @@
 
   // Long long arguments are not handled at Python level currently but still work.
   void seek(long long offset = 0LL) {}
+  void seek2(unsigned long long offset = 0ULL) {}
+  void seek3(long offset = 0L) {}
+  void seek4(unsigned long offset = 0UL) {}
+  void seek5(unsigned long offset = 0U) {}
 
   // Anonymous arguments
   int anonymous(int = 7771);

Examples/test-suite/python/Makefile.in

@@ -58,7 +58,6 @@ CPP_TEST_CASES += \
 	primitive_types \
 	python_abstractbase \
 	python_append \
-	python_default_args \
 	python_director \
 	python_nondynamic \
 	python_overload_simple_cast \

Examples/test-suite/python/python_default_args_runme.py

@@ -1,3 +0,0 @@
-# Test %feature("python:defaultargs") using the test code in default_args_runme.py (which does not use the feature)
-import default_args_runme
-default_args_runme.run('python_default_args')

Examples/test-suite/python_default_args.i

@@ -1,6 +0,0 @@
-%module python_default_args
-
-// Testing use of %pythondefaultargs
-%pythondefaultargs;
-
-%include "default_args.i"