Don't have strings in plugins translatable that [dw]on't work anyhow

The plugin description and -path are not shown translated even if they
are (like for the helloqml plugin and German).
Showing as being translatable gives a wrong impression as examples for
other plugins.

share/plugins/abc_import.qml

@@ -29,7 +29,7 @@ import FileIO 3.0
 MuseScore {
     menuPath: "Plugins.ABC Import"
     version: "3.0"
-    description: qsTr("This plugin imports ABC text from a file or the clipboard. Internet connection is required.")
+    description: "This plugin imports ABC text from a file or the clipboard. Internet connection is required."
     requiresScore: false
     pluginType: "dialog"
 

share/plugins/colornotes.qml

@@ -25,7 +25,7 @@ import MuseScore 3.0
 
 MuseScore {
       version:  "3.5"
-      description: qsTr("This plugin colors notes in the selection depending on their pitch as per the Boomwhackers convention")
+      description: "This plugin colors notes in the selection depending on their pitch as per the Boomwhackers convention"
       menuPath: "Plugins.Notes.Color Notes"
 
       property variant colors : [ // "#rrggbb" with rr, gg, and bb being the hex values for red, green, and blue, respectively

share/plugins/helloqml/helloqml.qml

@@ -26,7 +26,7 @@ import MuseScore 3.0
 MuseScore {
     menuPath:    "Plugins.helloQml"
     version:     "3.0"
-    description: qsTr("This demo plugin shows some basic tasks.")
+    description: "This demo plugin shows some basic tasks."
     pluginType: "dialog"
 
     width:  150

share/plugins/helloqml/translations/locale_de.ts

@@ -3,11 +3,6 @@
 <TS version="2.0" language="de_DE">
 <context>
     <name>helloqml</name>
-    <message>
-	<location filename="../helloqml.qml" line="8"/>
-        <source>This demo plugin shows some basic tasks.</source>
-        <translation>Dieses Demo-Plugin zeigt einige einfache Funktionen.</translation>
-    </message>
     <message>
 	<location filename="../helloqml.qml" line="13"/>
         <source>hello world</source>

share/plugins/notenames-interactive.qml

@@ -26,8 +26,8 @@ import MuseScore 3.0
 
 MuseScore {
     version: "3.5"
-    description: qsTr("This plugin names notes as per your language setting")
-    menuPath: "Plugins.Notes." + qsTr("Note Names (Interactive)")
+    description: "This plugin names notes as per your language setting"
+    menuPath: "Plugins.Notes." + "Note Names (Interactive)"
     pluginType: "dock"
 
     implicitHeight: controls.implicitHeight * 1.5

share/plugins/notenames.qml

@@ -25,8 +25,8 @@ import MuseScore 3.0
 
 MuseScore {
    version: "3.5"
-   description: qsTr("This plugin names notes as per your language setting")
-   menuPath: "Plugins.Notes." + qsTr("Note Names")
+   description: "This plugin names notes as per your language setting"
+   menuPath: "Plugins.Notes." + "Note Names"
 
    // Small note name size is fraction of the full font size.
    property var fontSizeMini: 0.7;