Debugger: Remove DebuggerEngine::stateAcceptsBreakpointChanges()

Dead code since 3b5ecac238 (the end of the hybrid engine).

Change-Id: Ibb169ff657c8a88fdc52783a6a1f5b79fa0b29e5
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/debugger/cdb/cdbengine.cpp

@@ -2399,18 +2399,6 @@ static QByteArray multiBreakpointCommand(const char *cmdC, const Breakpoints &bp
 }
 #endif
 
-bool CdbEngine::stateAcceptsBreakpointChanges() const
-{
-    switch (state()) {
-    case InferiorRunOk:
-    case InferiorStopOk:
-    return true;
-    default:
-        break;
-    }
-    return false;
-}
-
 bool CdbEngine::acceptsBreakpoint(const BreakpointParameters &bp) const
 {
     if (bp.isCppBreakpoint()) {