remove stage1 debug helpers python code

tools/stage1_gdb_pretty_printers.py

@@ -1,37 +0,0 @@
-# pretty printing for stage1.
-# put "source /path/to/stage1_gdb_pretty_printers.py" in ~/.gdbinit to load it automatically.
-import gdb.printing
-
-class ZigListPrinter:
-    def __init__(self, val):
-        self.val = val
-
-    def to_string(self):
-        return '%s of length %d, capacity %d' % (self.val.type.name, int(self.val['length']), int(self.val['capacity']))
-
-    def children(self):
-        def it(ziglist):
-            for i in range(int(ziglist.val['length'])):
-                item = ziglist.val['items'] + i
-                yield ('[%d]' % i, item.dereference())
-        return it(self)
-
-    def display_hint(self):
-        return 'array'
-
-# handle both Buf and ZigList<char> because Buf* doesn't work otherwise (gdb bug?)
-class BufPrinter:
-    def __init__(self, val):
-        self.val = val['list'] if val.type.name == 'Buf' else val
-
-    def to_string(self):
-        return self.val['items'].string(length=int(self.val['length']))
-
-    def display_hint(self):
-        return 'string'
-
-pp = gdb.printing.RegexpCollectionPrettyPrinter('Zig stage1 compiler')
-pp.add_printer('Buf', '^Buf$', BufPrinter)
-pp.add_printer('ZigList<char>', '^ZigList<char>$', BufPrinter)
-pp.add_printer('ZigList', '^ZigList<.*>$', ZigListPrinter)
-gdb.printing.register_pretty_printer(gdb.current_objfile(), pp)