vk: Minor refactor to make early-exit branches trivial and easier to read

rpcs3/Emu/RSX/VK/vkutils/sync.cpp

@@ -304,8 +304,12 @@ namespace vk
 		resolve_dependencies(cmd, dependency);
 
 		// 2. Signalling won't wait. The caller is responsible for setting up the dependencies correctly.
-		if (m_backend == sync_backend::events_v2)
+		if (m_backend != sync_backend::events_v2)
 		{
+			vkCmdSetEvent(cmd, m_vk_event, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT);
+			return;
+		}
+
 		// We need a memory barrier to keep AMDVLK from hanging
 		VkMemoryBarrier2KHR mem_barrier =
 		{
@@ -323,10 +327,6 @@ namespace vk
 		};
 
 		m_device->_vkCmdSetEvent2KHR(cmd, m_vk_event, &empty_dependency);
-			return;
-		}
-
-		vkCmdSetEvent(cmd, m_vk_event, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT);
 	}
 
 	void event::host_signal() const