Remove non-CPython socket methods; remove wsgi server

adafruit_esp32spi/adafruit_esp32spi_socket.py

@@ -86,14 +86,15 @@ def send(self, data):  # pylint: disable=no-self-use
         _the_interface.socket_write(self._socknum, data, conn_mode=conntype)
         gc.collect()
 
-    def recv(self, bufsize: int):
+    def recv(self, bufsize: int) -> bytes:
         """Reads some bytes from the connected remote address. Will only return
         an empty string after the configured timeout.
 
         :param int bufsize: maximum number of bytes to receive
         """
         buf = bytearray(bufsize)
         self.recv_into(buf, bufsize)
+        return bytes(buf)
 
     def recv_into(self, buffer, nbytes: int = 0):
         """Read bytes from the connected remote address into a given buffer.