Remove some unused code

Author: wheremyfoodat

src/core/psxemulator.cc

@@ -117,12 +117,6 @@ void PCSX::Emulator::vsync() {
     g_system->update(true);
     m_cheats->ApplyCheats();
 
-    if (m_vblank_count_hideafter) {
-        if (!(--m_vblank_count_hideafter)) {
-            PCSX::g_emulator->m_gpu->showScreenPic(NULL);
-        }
-    }
-
     if (m_config.RewindInterval > 0 && !(++m_rewind_counter % m_config.RewindInterval)) {
         // CreateRewindState();
     }

src/core/psxemulator.h

@@ -211,7 +211,6 @@ class Emulator {
 
     // It is safe if these overflow
     uint32_t m_rewind_counter = 0;
-    uint8_t m_vblank_count_hideafter = 0;
 
     // Used for overclocking
     // Make the timing events trigger faster as we are currently assuming everything