Re-enable some pylint checks.

.pylintrc

@@ -6,23 +6,16 @@ extension-pkg-whitelist=PyQt5,sip
 
 [MESSAGES CONTROL]
 disable=no-self-use,
-        super-on-old-class,
-        old-style-class,
-        abstract-class-little-used,
         bad-builtin,
-        star-args,
         fixme,
         global-statement,
-        no-init,
         locally-disabled,
         too-many-ancestors,
         too-few-public-methods,
         too-many-public-methods,
         cyclic-import,
-        bad-option-value,
         bad-continuation,
         too-many-instance-attributes,
-        unnecessary-lambda,
         blacklisted-name,
         too-many-lines,
         logging-format-interpolation,

qutebrowser/browser/network/networkreply.py

@@ -54,6 +54,7 @@ class FixedDataNetworkReply(QNetworkReply):
         self.setAttribute(QNetworkRequest.HttpReasonPhraseAttribute, 'OK')
         # For some reason, a segfault will be triggered if these lambdas aren't
         # there.
+        # pylint: disable=unnecessary-lambda
         QTimer.singleShot(0, lambda: self.metaDataChanged.emit())
         QTimer.singleShot(0, lambda: self.readyRead.emit())
         QTimer.singleShot(0, lambda: self.finished.emit())
@@ -112,6 +113,7 @@ class ErrorNetworkReply(QNetworkReply):
         self.setError(error, errorstring)
         # For some reason, a segfault will be triggered if these lambdas aren't
         # there.
+        # pylint: disable=unnecessary-lambda
         QTimer.singleShot(0, lambda: self.error.emit(error))
         QTimer.singleShot(0, lambda: self.finished.emit())