[ci] remove ragel from psvita compile bot

.circleci/config.yml

@@ -261,7 +261,6 @@ jobs:
       - image: dockcross/base
     steps:
       - checkout
-      - run: apt update && apt install ragel
       - run: git clone https://github.com/vitasdk/vdpm && cd vdpm && ./bootstrap-vitasdk.sh
       - run: ./autogen.sh --prefix=/usr/local/vitasdk/arm-vita-eabi --host=arm-vita-eabi
       - run: make -j32