Remove some unneeded imports

nw/additions/qconfiglayout.py

@@ -31,7 +31,7 @@ import nw
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QColor, QPalette
 from PyQt5.QtWidgets import (
-    QGridLayout, QLabel, QWidget, QVBoxLayout, QHBoxLayout, QLayout
+    QGridLayout, QLabel, QWidget, QVBoxLayout, QHBoxLayout
 )
 
 from nw.constants import nwUnicode

nw/gui/dialogs/configeditor.py

@@ -33,9 +33,9 @@ from os import path
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QFont
 from PyQt5.QtWidgets import (
-    QDialog, QHBoxLayout, QVBoxLayout, QLineEdit, QLabel, QWidget, QTabWidget,
-    QDialogButtonBox, QSpinBox, QGroupBox, QComboBox, QMessageBox, QCheckBox,
-    QGridLayout, QFontComboBox, QPushButton, QFileDialog, QFormLayout
+    QDialog, QWidget, QHBoxLayout, QVBoxLayout, QTabWidget, QComboBox, QSpinBox,
+    QPushButton, QFontComboBox, QLineEdit, QDialogButtonBox, QMessageBox,
+    QFileDialog
 )
 
 from nw.additions import QSwitch, QConfigLayout

nw/gui/elements/doctitlebar.py

@@ -30,7 +30,7 @@ import nw
 
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QPalette, QColor
-from PyQt5.QtWidgets import QLabel, QFrame, QStyle
+from PyQt5.QtWidgets import QLabel, QFrame
 
 from nw.constants import nwUnicode