Remove debug console completing completely.

Turns out pylint doesn't like it if stuff is unused because we commented code
out ;)

qutebrowser/misc/consolewidget.py

@@ -21,16 +21,14 @@
 
 import sys
 import code
-import rlcompleter
 
-from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QStringListModel
-from PyQt5.QtWidgets import (QTextEdit, QWidget, QVBoxLayout, QApplication,
-                             QCompleter)
+from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt
+from PyQt5.QtWidgets import QTextEdit, QWidget, QVBoxLayout, QApplication
 from PyQt5.QtGui import QTextCursor
 
 from qutebrowser.config import config
 from qutebrowser.misc import cmdhistory, miscwidgets
-from qutebrowser.utils import utils, log, objreg
+from qutebrowser.utils import utils, objreg
 
 
 class ConsoleLineEdit(miscwidgets.CommandLineEdit):
@@ -39,8 +37,6 @@ class ConsoleLineEdit(miscwidgets.CommandLineEdit):
 
     Attributes:
         _history: The command history of executed commands.
-        _rlcompleter: The rlcompleter.Completer instance.
-        _qcompleter: The QCompleter instance.
 
     Signals:
         execute: Emitted when a commandline should be executed.
@@ -48,46 +44,18 @@ class ConsoleLineEdit(miscwidgets.CommandLineEdit):
 
     execute = pyqtSignal(str)
 
-    def __init__(self, namespace, parent):
+    def __init__(self, _namespace, parent):
         """Constructor.
 
         Args:
-            namespace: The local namespace of the interpreter.
+            _namespace: The local namespace of the interpreter.
         """
         super().__init__(parent)
         self.update_font()
         objreg.get('config').changed.connect(self.update_font)
-        #self.textChanged.connect(self.on_text_changed)
-
-        #self._rlcompleter = rlcompleter.Completer(namespace)
-        #qcompleter = QCompleter(self)
-        #self._model = QStringListModel(qcompleter)
-        #qcompleter.setModel(self._model)
-        #qcompleter.setCompletionMode(
-        #    QCompleter.UnfilteredPopupCompletion)
-        #qcompleter.setModelSorting(
-        #    QCompleter.CaseSensitivelySortedModel)
-        #self.setCompleter(qcompleter)
-
         self._history = cmdhistory.History(parent=self)
         self.returnPressed.connect(self.on_return_pressed)
 
-    @pyqtSlot(str)
-    def on_text_changed(self, text):
-        """Update completion when text changed."""
-        strings = set()
-        i = 0
-        while True:
-            s = self._rlcompleter.complete(text, i)
-            if s is None:
-                break
-            else:
-                strings.add(s)
-            i += 1
-        strings = sorted(list(strings))
-        self._model.setStringList(strings)
-        log.misc.vdebug('completions: {!r}'.format(strings))
-
     @pyqtSlot(str)
     def on_return_pressed(self):
         """Execute the line of code which was entered."""