Add remove_image and remove_thumbnail methods.

Author: izxxr

discord/embeds.py

@@ -424,6 +424,22 @@ def set_image(self: E, *, url: MaybeEmpty[Any]) -> E:
 
         return self
 
+    def remove_image(self):
+        """Removes the embed's image.
+
+        This function returns the class instance to allow for fluent-style
+        chaining.
+
+        .. versionadded:: 2.0
+        """
+        try:
+            del self._image
+        except AttributeError:
+            pass
+        
+        return self
+
+
     @property
     def thumbnail(self) -> _EmbedMediaProxy:
         """Returns an ``EmbedProxy`` denoting the thumbnail contents.
@@ -466,6 +482,21 @@ def set_thumbnail(self: E, *, url: MaybeEmpty[Any]) -> E:
 
         return self
 
+    def remove_thumbnail(self):
+        """Removes the embed's thumbnail.
+        
+        This function returns the class instance to allow for fluent-style
+        chaining.
+
+        .. versionadded:: 2.0
+        """
+        try:
+            del self._thumbnail
+        except AttributeError:
+            pass
+        
+        return self
+
     @property
     def video(self) -> _EmbedVideoProxy:
         """Returns an ``EmbedProxy`` denoting the video contents.