Windows: Enable a couple of exec tests

Signed-off-by: John Howard <jhoward@microsoft.com>

integration-cli/docker_api_exec_resize_test.go

@@ -26,8 +26,6 @@ func (s *DockerSuite) TestExecResizeApiHeightWidthNoInt(c *check.C) {
 
 // Part of #14845
 func (s *DockerSuite) TestExecResizeImmediatelyAfterExecStart(c *check.C) {
-	testRequires(c, DaemonIsLinux)
-
 	name := "exec_resize_test"
 	dockerCmd(c, "run", "-d", "-i", "-t", "--name", name, "--restart", "always", "busybox", "/bin/sh")
 

integration-cli/docker_cli_exec_test.go

@@ -68,7 +68,6 @@ func (s *DockerSuite) TestExecInteractive(c *check.C) {
 }
 
 func (s *DockerSuite) TestExecAfterContainerRestart(c *check.C) {
-	testRequires(c, DaemonIsLinux)
 	out, _ := runSleepingContainer(c)
 	cleanedContainerID := strings.TrimSpace(out)
 	c.Assert(waitRun(cleanedContainerID), check.IsNil)
@@ -166,8 +165,6 @@ func (s *DockerSuite) TestExecTTYCloseStdin(c *check.C) {
 }
 
 func (s *DockerSuite) TestExecTTYWithoutStdin(c *check.C) {
-	// TODO Windows CI: This requires some work to port to Windows.
-	testRequires(c, DaemonIsLinux)
 	out, _ := dockerCmd(c, "run", "-d", "-ti", "busybox")
 	id := strings.TrimSpace(out)
 	c.Assert(waitRun(id), checker.IsNil)