Remove wrong german translation

Author: ann0see

src/translation/translation_ru_RU.ts

@@ -415,7 +415,7 @@
     <message>
         <location filename="../audiomixerboard.cpp" line="838"/>
         <source>Beginner</source>
-        <translation type="unfinished">Anfänger</translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../audiomixerboard.cpp" line="179"/>
@@ -1361,7 +1361,7 @@ We muted your channel and activated &apos;Mute Myself&apos;. Please solve the fe
     <message>
         <location filename="../clientsettingsdlg.cpp" line="1197"/>
         <source>Center</source>
-        <translation type="unfinished">Mitte</translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../clientsettingsdlg.cpp" line="1209"/>
@@ -1466,7 +1466,7 @@ We muted your channel and activated &apos;Mute Myself&apos;. Please solve the fe
     <message>
         <location filename="../clientsettingsdlg.cpp" line="58"/>
         <source>Local Audio Input Fader</source>
-        <translation type="unfinished">Lokaler Eingangspegelregler</translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../clientsettingsdlg.cpp" line="66"/>
@@ -1477,7 +1477,7 @@ We muted your channel and activated &apos;Mute Myself&apos;. Please solve the fe
     <message>
         <location filename="../clientsettingsdlg.cpp" line="72"/>
         <source>Local audio input fader (left/right)</source>
-        <translation type="unfinished">Lokaler Eingangsregler</translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../clientsettingsdlg.cpp" line="76"/>
@@ -3191,7 +3191,7 @@ We muted your channel and activated &apos;Mute Myself&apos;. Please solve the fe
         <location filename="../util.cpp" line="1512"/>
         <source>%1, Version %2</source>
         <comment>%1 is app name, %2 is version number</comment>
-        <translation type="unfinished">%1, Version %2</translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../util.cpp" line="1529"/>