chore: remove brazil fly.io proxy (coder#20601)

Author: deansheather

.github/fly-wsproxies/sao-paulo-coder.toml

@@ -163,12 +163,10 @@ jobs:
         run: |
           flyctl deploy --image "$IMAGE" --app paris-coder --config ./.github/fly-wsproxies/paris-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_PARIS" --yes
           flyctl deploy --image "$IMAGE" --app sydney-coder --config ./.github/fly-wsproxies/sydney-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_SYDNEY" --yes
-          flyctl deploy --image "$IMAGE" --app sao-paulo-coder --config ./.github/fly-wsproxies/sao-paulo-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_SAO_PAULO" --yes
           flyctl deploy --image "$IMAGE" --app jnb-coder --config ./.github/fly-wsproxies/jnb-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_JNB" --yes
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
           IMAGE: ${{ inputs.image }}
           TOKEN_PARIS: ${{ secrets.FLY_PARIS_CODER_PROXY_SESSION_TOKEN }}
           TOKEN_SYDNEY: ${{ secrets.FLY_SYDNEY_CODER_PROXY_SESSION_TOKEN }}
-          TOKEN_SAO_PAULO: ${{ secrets.FLY_SAO_PAULO_CODER_PROXY_SESSION_TOKEN }}
           TOKEN_JNB: ${{ secrets.FLY_JNB_CODER_PROXY_SESSION_TOKEN }}