fix: various bugs in observability / OTel (#1564)

backend/internal/common/env_config.go

@@ -81,10 +81,8 @@ type EnvConfigSchema struct {
 	ActorsPort string `env:"ACTORS_PORT"`
 	ActorsHost string `env:"ACTORS_HOST" options:"toLower"`
 
-	LogLevel       string `env:"LOG_LEVEL" options:"toLower"`
-	MetricsEnabled bool   `env:"METRICS_ENABLED"`
-	TracingEnabled bool   `env:"TRACING_ENABLED"`
-	LogJSON        bool   `env:"LOG_JSON"`
+	LogLevel string `env:"LOG_LEVEL" options:"toLower"`
+	LogJSON  bool   `env:"LOG_JSON"`
 }
 
 var EnvConfig = defaultConfig()

backend/internal/common/env_config_test.go

@@ -123,8 +123,6 @@ func TestParseEnvConfig(t *testing.T) {
 		err := parseAndValidateEnvConfig(t)
 		require.NoError(t, err)
 		assert.True(t, EnvConfig.UiConfigDisabled)
-		assert.True(t, EnvConfig.MetricsEnabled)
-		assert.False(t, EnvConfig.TracingEnabled)
 		assert.True(t, EnvConfig.TrustProxy)
 		assert.False(t, EnvConfig.AnalyticsDisabled)
 	})