Cleanup advanced settings in WeTek projects (#755)

projects/WeTek_*: Cleanup settings in default advancedsettings.xml that have been removed in Kodi Krypton

* projects/WeTek_Hub: Cleanup settings in default advancedsettings.xml that have been removed in Kodi Krypton

* projects/WeTek_Hub: Remove readbufferfactor from advancedsettings.xml, because readbufferfactor is anyway 4.0 by default

* projects/WeTek_Hub: Remove loglevel of 2 from advancedsettings.xml, we don't need debug logging by default

* projects/WeTek_Core: Cleanup settings in default advancedsettings.xml that have been removed in Kodi Krypton

projects/WeTek_Core/kodi/advancedsettings.xml

@@ -5,9 +5,4 @@
   <samba>
     <clienttimeout>30</clienttimeout>
   </samba>
-
-  <pvr>
-    <minvideocachelevel>5</minvideocachelevel>
-    <minaudiocachelevel>20</minaudiocachelevel>
-  </pvr>
 </advancedsettings>

projects/WeTek_Hub/kodi/advancedsettings.xml

@@ -5,15 +5,4 @@
   <samba>
     <clienttimeout>30</clienttimeout>
   </samba>
-
-  <network>
-    <readbufferfactor>4.0</readbufferfactor>
-  </network>
-
-  <pvr>
-    <minvideocachelevel>5</minvideocachelevel>
-    <minaudiocachelevel>20</minaudiocachelevel>
-  </pvr>
-
-  <loglevel>2</loglevel>
 </advancedsettings>

projects/WeTek_Play/kodi/advancedsettings.xml

@@ -5,9 +5,4 @@
   <samba>
     <clienttimeout>30</clienttimeout>
   </samba>
-
-  <pvr>
-    <minvideocachelevel>5</minvideocachelevel>
-    <minaudiocachelevel>20</minaudiocachelevel>
-  </pvr>
 </advancedsettings>