QmlDesigner: Use proper icons for Controls 1.0

* Using proper icons
* Removing unused images

Change-Id: I0b4ba6d33f14950fef28f9546aa39b7f5d5a38dd
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/qmldesigner/componentsplugin/components.metainfo

@@ -71,32 +71,6 @@ MetaInfo {
         }
     }
 
-    Type {
-        name: "QtQuick.Controls.ButtonRow"
-        icon: ":/componentsplugin/images/buttonrow16.png"
-
-        ItemLibraryEntry {
-            name: "Button Row"
-            category: "Qt Quick - Controls"
-            libraryIcon: ":/componentsplugin/images/buttonrow.png"
-            version: "1.0"
-            requiredImport: "QtQuick.Controls"
-        }
-    }
-
-    Type {
-        name: "QtQuick.Controls.ButtonColumn"
-        icon: ":/componentsplugin/images/buttoncolumn16.png"
-
-        ItemLibraryEntry {
-            name: "Button Column"
-            category: "Qt Quick - Controls"
-            libraryIcon: ":/componentsplugin/images/buttoncolumn.png"
-            version: "1.0"
-            requiredImport: "QtQuick.Controls"
-        }
-    }
-
     Type {
         name: "QtQuick.Controls.Label"
         icon: ":/componentsplugin/images/label16.png"
@@ -168,7 +142,7 @@ MetaInfo {
         ItemLibraryEntry {
            name: "Slider (Vertical)"
             category: "Qt Quick - Controls"
-            libraryIcon: ":/componentsplugin/images/sliderh.png"
+            libraryIcon: ":/componentsplugin/images/slider.png"
             version: "1.0"
             requiredImport: "QtQuick.Controls"
             Property { name: "orientation"; type: "Enumeration"; value: "Qt.Vertical"; }

src/plugins/qmldesigner/componentsplugin/componentsplugin.qrc

@@ -3,10 +3,6 @@
         <file>components.metainfo</file>
         <file>images/button.png</file>
         <file>images/button16.png</file>
-        <file>images/buttoncolumn.png</file>
-        <file>images/buttoncolumn16.png</file>
-        <file>images/buttonrow.png</file>
-        <file>images/buttonrow16.png</file>
         <file>images/checkbox.png</file>
         <file>images/checkbox16.png</file>
         <file>images/combobox.png</file>
@@ -19,20 +15,12 @@
         <file>images/radiobutton16.png</file>
         <file>images/slider.png</file>
         <file>images/slider16.png</file>
-        <file>images/sliderh.png</file>
-        <file>images/sliderh16.png</file>
         <file>images/label.png</file>
         <file>images/label16.png</file>
-        <file>images/tabbar.png</file>
-        <file>images/tabbar16.png</file>
-        <file>images/tabbutton.png</file>
-        <file>images/tabbutton16.png</file>
         <file>images/textarea.png</file>
         <file>images/textarea16.png</file>
         <file>images/textfield.png</file>
         <file>images/textfield16.png</file>
-        <file>images/toolbar.png</file>
-        <file>images/toolbar16.png</file>
         <file>images/window.png</file>
         <file>images/window16.png</file>
         <file>images/column-layouts-icon.png</file>