integration-cli: fix duplicate close of body

request.ReadBody already closes the body;

    time="2025-03-20T19:08:25Z" level=error msg="subsequent attempt to close ReadCloserWrapper"

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

integration-cli/docker_api_build_test.go

@@ -122,7 +122,6 @@ RUN echo 'right'
 	assert.NilError(c, err)
 	assert.Equal(c, res.StatusCode, http.StatusOK)
 
-	defer body.Close()
 	content, err := request.ReadBody(body)
 	assert.NilError(c, err)
 

integration-cli/docker_api_test.go

@@ -59,7 +59,6 @@ func (s *DockerAPISuite) TestAPIClientVersionOldNotSupported(c *testing.T) {
 
 	resp, body, err := request.Get(testutil.GetContext(c), "/v"+version+"/version")
 	assert.NilError(c, err)
-	defer body.Close()
 	assert.Equal(c, resp.StatusCode, http.StatusBadRequest)
 	expected := fmt.Sprintf("client version %s is too old. Minimum supported API version is %s, please upgrade your client to a newer version", version, testEnv.DaemonVersion.MinAPIVersion)
 	b, err := request.ReadBody(body)