Remove deprecated platforms from plugin.xml (#675)

plugin.xml

@@ -58,22 +58,6 @@
     <hook src="hooks/windows/check-arch.js" type="before_compile"/>
     <hook src="hooks/windows/check-arch.js" type="before_run"/>
   </platform>
-  <platform name="wp8">
-    <config-file target="config.xml" parent="/*">
-      <feature name="BarcodeScanner">
-        <param name="wp-package" value="BarcodeScanner"/>
-      </feature>
-    </config-file>
-    <config-file target="Properties/WMAppManifest.xml" parent="/Deployment/App/Capabilities">
-      <Capability Name="ID_CAP_ISV_CAMERA"/>
-    </config-file>
-    <framework src="src/wp8/lib/zxing.wp8.0.dll" custom="true"/>
-    <asset src="src/wp8/assets/cancel.png" target="Images/appbar.cancel.png"/>
-    <source-file src="src/wp8/BarcodeScanner.cs"/>
-    <source-file src="src/wp8/BarcodeScannerTask.cs"/>
-    <source-file src="src/wp8/BarcodeScannerUI.xaml"/>
-    <source-file src="src/wp8/BarcodeScannerUI.xaml.cs"/>
-  </platform>
   <platform name="browser">
     <config-file target="config.xml" parent="/*">
       <feature name="BarcodeScanner">
@@ -84,19 +68,4 @@
       <runs/>
     </js-module>
   </platform>
-  <platform name="blackberry10">
-    <source-file src="src/blackberry10/index.js" target-dir="BarcodeScanner"/>
-    <source-file src="src/blackberry10/qrcode.js" target-dir="BarcodeScanner"/>
-    <lib-file src="src/blackberry10/native/device/libBarcodeScanner.so" arch="device"/>
-    <lib-file src="src/blackberry10/native/simulator/libBarcodeScanner.so" arch="simulator"/>
-    <config-file target="www/config.xml" parent="/widget">
-      <feature name="BarcodeScanner">
-        <param name="blackberry-package" value="phonegap-plugin-barcodescanner"/>
-      </feature>
-    </config-file>
-    <config-file target="www/config.xml" parent="/widget/rim:permissions">
-      <rim:permit>use_camera</rim:permit>
-    </config-file>
-    <dependency id="cordova-plugin-bb-app"/>
-  </platform>
 </plugin>