Fix -Werror,-Wunused-private-field

Change-Id: Idcba9e9bc6210250a37950a2b927b9b74cc57c4f

include/sfx2/sidebar/ContextChangeBroadcaster.hxx

@@ -42,7 +42,6 @@ public:
 
 private:
     rtl::OUString msContextName;
-    bool mbIsContextActive;
 
     void BroadcastContextChange (
         const cssu::Reference<css::frame::XFrame>& rxFrame,

sfx2/source/sidebar/ContextChangeBroadcaster.cxx

@@ -31,8 +31,7 @@ namespace sfx2 { namespace sidebar {
 
 
 ContextChangeBroadcaster::ContextChangeBroadcaster (void)
-    : msContextName(),
-      mbIsContextActive(false)
+    : msContextName()
 {
 }
 
@@ -47,8 +46,6 @@ ContextChangeBroadcaster::~ContextChangeBroadcaster (void)
 
 void ContextChangeBroadcaster::Initialize (const ::rtl::OUString& rsContextName)
 {
-    OSL_ASSERT( ! mbIsContextActive);
-
     msContextName = rsContextName;
 }