remove timeout test since timeout happens in connection now

aioesphomeapi/_frame_helper/base.pxd

@@ -42,5 +42,3 @@ cdef class APIFrameHelper:
     cpdef void write_packets(self, list packets, bint debug_enabled)
 
     cdef void _write_bytes(self, object data, bint debug_enabled)
-
-    cdef get_handshake_future(self)

aioesphomeapi/_frame_helper/base.py

@@ -137,10 +137,6 @@ class APIFrameHelper:
             bitpos += 7
         return -1
 
-    def get_handshake_future(self) -> None:
-        """Get the handshake future."""
-        return self.ready_future
-
     @abstractmethod
     def write_packets(
         self, packets: list[tuple[int, bytes]], debug_enabled: bool