Do not force the height of the color scheme editor window (widget)

Allow the dialog to be usable on < 600 px windows; the removed code
to force height makes no sense regardless.

src/ColorSchemeEditor.cpp

@@ -330,11 +330,6 @@ void ColorSchemeEditor::setupColorTable(const ColorScheme *colors)
     }
     // ensure that color names are as fully visible as possible
     _ui->colorTable->resizeColumnToContents(0);
-
-    // set the widget height to the table content
-    _ui->colorTable->setFixedHeight(
-        _ui->colorTable->verticalHeader()->length() + _ui->colorTable->horizontalHeader()->height()
-        + 2);
 }
 
 ColorScheme &ColorSchemeEditor::colorScheme() const

src/ColorSchemeEditor.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>364</width>
-    <height>502</height>
+    <height>376</height>
    </rect>
   </property>
   <layout class="QVBoxLayout">