Update circleci config.

Author: snyuryev

.circleci/config.yml

@@ -42,9 +42,6 @@ jobs:
       - run:
           name: export flutter path
           command: echo 'export PATH="$PATH:`pwd`/flutter/bin"'  >> $BASH_ENV 
-      - run:
-          name: Fetch CocoaPods Specs
-          command: curl https://cocoapods-specs.circleci.com/fetch-cocoapods-repo-from-s3.sh  | bash -s cf
       - run: flutter doctor
       - run: 
           name: Flutter build