Use built-in readline() instead of own function

We don't need to read partial lines so we can make do with readline()

custom_components/vinx/lw3.py

@@ -37,16 +37,6 @@ def __init__(self, hostname: str, port: int, timeout: int = 5):
         self._writer: StreamWriter | None = None
         self._semaphore = asyncio.Semaphore()
 
-    async def _read_until(self, phrase: str) -> str | None:
-        b = bytearray()
-
-        while not self._reader.at_eof():
-            byte = await self._reader.read(1)
-            b += byte
-
-            if b.endswith(phrase.encode()):
-                return b.decode()
-
     def connection(self):
         return LW3ConnectionContext(self)
 
@@ -71,12 +61,12 @@ def parse_response(response: str) -> PropertyResponse | ErrorResponse:
         return PropertyResponse(matches.group(1), matches.group(2), matches.group(3))
 
     async def _read_and_parse_response(self) -> PropertyResponse:
-        response = await self._read_until("\r\n")
+        response = await self._reader.readline()
 
         if response is None:
             raise EOFError("Reached EOF while reading, connection probably lost")
 
-        result = self.parse_response(response.strip())
+        result = self.parse_response(response.decode().strip())
 
         if isinstance(result, ErrorResponse):
             raise ValueError(result)