Revert "When you send a message, scroll it into view"

This reverts commit a3525c16ef.

ts/components/CompositionArea.stories.tsx

@@ -68,6 +68,7 @@ const useProps = (overrideProps: Partial<Props> = {}): Props => ({
   clearQuotedMessage: action('clearQuotedMessage'),
   getPreferredBadge: () => undefined,
   getQuotedMessage: action('getQuotedMessage'),
+  scrollToBottom: action('scrollToBottom'),
   sortedGroupMembers: [],
   // EmojiButton
   onPickEmoji: action('onPickEmoji'),