Remove obsolete packages from Docker image

Author: hiddeco

Dockerfile

@@ -20,7 +20,7 @@ RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -o source-c
 
 FROM alpine:3.11
 
-RUN apk add --no-cache ca-certificates tini 'git>=2.12.0' socat curl bash
+RUN apk add --no-cache ca-certificates tini
 
 COPY --from=builder /workspace/source-controller /usr/local/bin/