[rpm/sailfishos-chum-gui-installer.spec] "called"→"invoked", and …

… remove a missed `/var/cache/ssu/features.ini`, because it solely contains information about Jolla-specific repositories.

rpm/sailfishos-chum-gui-installer.spec

@@ -177,7 +177,7 @@ ssu ur
 # committed on 18 February 2019 by tibbs ( https://pagure.io/user/tibbs ) in
 # https://pagure.io/packaging-committee/c/8d0cec97aedc9b34658d004e3a28123f36404324
 # Hence only the main section of a spec file and likely also `%%(<shell-script>)`
-# statements are executed in a shell called with the option `-e', but not the
+# statements are executed in a shell invoked with the option `-e', but not the
 # scriptlets: `%%pre*`, `%%post*`, `%%trigger*` and `%%file*`
 exit 0
 
@@ -189,7 +189,6 @@ exit 0
 if [ "$1" = 0 ]  # Removal
 then
   ssu rr sailfishos-chum
-  rm -f /var/cache/ssu/features.ini
   ssu ur
 fi
 exit 0