Misc: Unreachable code warning fixes

src/util/vulkan_stream_buffer.cpp

@@ -119,7 +119,6 @@ bool VulkanStreamBuffer::ReserveMemory(u32 num_bytes, u32 alignment)
     Log_ErrorPrintf("Attempting to allocate %u bytes from a %u byte stream buffer", static_cast<u32>(num_bytes),
                     static_cast<u32>(m_size));
     Panic("Stream buffer overflow");
-    return false;
   }
 
   UpdateGPUPosition();