Remove explicit DOCKER_API_VERSION from integration env setup

Use the default version because it is used by the client package

Signed-off-by: Daniel Nephin <dnephin@docker.com>
Upstream-commit: e73d742cd7deee396eac3c97664b40264ee358cb
Component: engine

components/engine/hack/make/.integration-daemon-start

@@ -7,10 +7,6 @@ export PATH="$base/binary-daemon:$base/dynbinary-daemon:$PATH"
 
 export TEST_CLIENT_BINARY=docker
 
-# Do not bump this version! Integration tests should no longer rely on the docker cli, they should be
-# API tests instead. For the existing tests the scripts will use a frozen version of the docker cli
-# with a DOCKER_API_VERSION frozen to 1.30, which should ensure that the CI remains green at all times.
-export DOCKER_API_VERSION=1.30
 if [ -n "$DOCKER_CLI_PATH" ]; then
 	export TEST_CLIENT_BINARY=/usr/local/cli/$(basename "$DOCKER_CLI_PATH")
 fi