fix: remove limited grpc support (#43)

NOTICE

@@ -16,7 +16,6 @@ The Apache 2.0 License
 The following components are provided under the  Apache 2.0 License  (https://opensource.org/licenses/Apache-2.0).
 See project link for details.
 
-https://grpc.io/
 https://github.com/pydata/xarray
 https://github.com/corteva/rioxarray
 https://github.com/CS-SI/eodag
@@ -31,4 +30,3 @@ See project link for details.
 
 http://www.numpy.org/
 https://github.com/mapbox/rasterio
-https://github.com/google/protobuf

eodag_cube/api/product/_product.py

@@ -205,44 +205,3 @@ def _get_rio_env(self, dataset_address):
             }
         else:
             return {}
-
-    def encode(self, raster, encoding="protobuf"):
-        """Encode the subset to a network-compatible format.
-        :param raster: The raster data to encode
-        :type raster: xarray.DataArray
-        :param encoding: The encoding of the export
-        :type encoding: str
-        :return: The data encoded in the specified encoding
-        :rtype: bytes
-        """
-        # If no encoding return an empty byte
-        if not encoding:
-            logger.warning("Trying to encode a raster without specifying an encoding")
-            return b""
-        strategy = getattr(self, "_{encoding}".format(**locals()), None)
-        if strategy:
-            return strategy(raster)
-        logger.error("Unknown encoding: %s", encoding)
-        return b""
-
-    def _protobuf(self, raster):
-        """Google's Protocol buffers encoding strategy.
-        :param raster: The raster to encode
-        :type raster: xarray.DataArray
-        :returns: The raster data represented by this subset in protocol buffers
-                    encoding
-        :rtype: bytes
-        """
-        from eodag_cube.api.product.protobuf import eo_product_pb2
-
-        subdataset = eo_product_pb2.EOProductSubdataset()
-        subdataset.id = self.properties["id"]
-        subdataset.producer = self.provider
-        subdataset.product_type = self.product_type
-        subdataset.platform = self.properties["platformSerialIdentifier"]
-        subdataset.sensor = self.properties["instrument"]
-        data = subdataset.data
-        data.array.extend(list(raster.values.flatten().astype(int)))
-        data.shape.extend(list(raster.values.shape))
-        data.dtype = raster.values.dtype.name
-        return subdataset.SerializeToString()