tracing: Remove trace mode and trace type

Remove the `trace_mode` and `trace_type` agent tracing options as
decided in the Architecture Committee meeting.

See:

- https://github.com/kata-containers/kata-containers/pull/2062

Fixes: #2352.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>

src/runtime/cmd/kata-runtime/kata-env.go

@@ -117,10 +117,8 @@ type HypervisorInfo struct {
 
 // AgentInfo stores agent details
 type AgentInfo struct {
-	TraceMode string
-	TraceType string
-	Debug     bool
-	Trace     bool
+	Debug bool
+	Trace bool
 }
 
 // DistroInfo stores host operating system distribution details.
@@ -157,11 +155,11 @@ type EnvInfo struct {
 	Meta       MetaInfo
 	Image      ImageInfo
 	Initrd     InitrdInfo
-	Agent      AgentInfo
 	Hypervisor HypervisorInfo
-	Netmon     NetmonInfo
 	Runtime    RuntimeInfo
+	Netmon     NetmonInfo
 	Host       HostInfo
+	Agent      AgentInfo
 }
 
 func getMetaInfo() MetaInfo {
@@ -303,8 +301,6 @@ func getAgentInfo(config oci.RuntimeConfig) (AgentInfo, error) {
 	agentConfig := config.AgentConfig
 	agent.Debug = agentConfig.Debug
 	agent.Trace = agentConfig.Trace
-	agent.TraceMode = agentConfig.TraceMode
-	agent.TraceType = agentConfig.TraceType
 
 	return agent, nil
 }

src/runtime/cmd/kata-runtime/kata-env_test.go

@@ -184,10 +184,6 @@ func getExpectedAgentDetails(config oci.RuntimeConfig) (AgentInfo, error) {
 	return AgentInfo{
 		Debug: agentConfig.Debug,
 		Trace: agentConfig.Trace,
-
-		// No trace mode/type set by default
-		TraceMode: "",
-		TraceType: "",
 	}, nil
 }
 
@@ -677,14 +673,10 @@ func TestEnvGetAgentInfo(t *testing.T) {
 	assert.True(t, agent.Debug)
 
 	agentConfig.Trace = true
-	agentConfig.TraceMode = "traceMode"
-	agentConfig.TraceType = "traceType"
 	config.AgentConfig = agentConfig
 	agent, err = getAgentInfo(config)
 	assert.NoError(t, err)
 	assert.True(t, agent.Trace)
-	assert.Equal(t, agent.TraceMode, "traceMode")
-	assert.Equal(t, agent.TraceType, "traceType")
 }
 
 func testEnvShowTOMLSettings(t *testing.T, tmpdir string, tmpfile *os.File) error {