Remove Preference hook for Vivaldi

Vivaldi is not planning to add the DeveloperSettings menu back, and the Preference hook is no longer working in recent update.
It is better to simply remove it.
Close #231 as fixed.

Author: JingMatrix

app/src/main/java/org/matrix/chromext/MainHook.kt

@@ -64,9 +64,8 @@ class MainHook : IXposedHookLoadPackage, IXposedHookZygoteInit {
             initHooks(UserScriptHook)
             if (ContextMenuHook.isInit) return@hookAfter
             runCatching {
-                  initHooks(
-                      PreferenceHook,
-                      if (Chrome.isEdge || Chrome.isCocCoc) PageInfoHook else PageMenuHook)
+                  if (!Chrome.isVivaldi) initHooks(PreferenceHook)
+                  initHooks(if (Chrome.isEdge || Chrome.isCocCoc) PageInfoHook else PageMenuHook)
                 }
                 .onFailure {
                   initHooks(ContextMenuHook)