fix : remove duplicated sse completion

Author: s0o0bn

matching-service/matching-application/app-api/src/main/kotlin/com/grepp/quizy/matching/api/sse/SseConnector.kt

@@ -34,7 +34,6 @@ class SseConnector(
     }
 
     fun disconnect(userId: UserId) {
-        emitterRepository.findById(userId.value)?.complete()
         emitterRepository.remove(userId.value)
         matchingPoolManager.remove(userId)
     }

matching-service/matching-application/app-api/src/main/kotlin/com/grepp/quizy/matching/api/sse/SseSender.kt

@@ -27,14 +27,14 @@ class SseSender(
                     .data(objectMapper.writeValueAsString(MatchingSucceed(event.gameRoomId)))
             )
             emitter.complete()
+            closeEmitter(event.userId)
         } catch (e: IOException) {
             closeEmitter(event.userId)
             emitter.completeWithError(e)
         }
     }
 
     private fun closeEmitter(userId: Long) {
-        emitterRepository.findById(userId)?.complete()
         emitterRepository.remove(userId)
         matchingPoolManager.remove(UserId(userId))
     }