cppcheck: Fix knownConditionTrueFalse warning in MythBDBuffer::PressB…

…utton.

When a hack was added to pin the Pts=1, a test for 'Pts <= 0' wasn't
removed.

mythtv/libs/libmythtv/Bluray/mythbdbuffer.cpp

@@ -931,7 +931,7 @@ void MythBDBuffer::PressButton(int32_t Key, int64_t Pts)
     LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Key %1 (pts %2)").arg(Key).arg(Pts));
     // HACK for still frame menu navigation
     Pts = 1;
-    if (!m_bdnav || Pts <= 0 || Key < 0)
+    if (!m_bdnav || /*Pts <= 0 ||*/ Key < 0)
         return;
     bd_user_input(m_bdnav, Pts, static_cast<uint32_t>(Key));
 }