pkg/test: unexport cleanupNoT (operator-framework#1167)

**Description of the change:** Unexport the `cleanupNoT` function


**Motivation for the change:** We should not export internal functions that we do not expect to be used outside of our own libraries. This allows us to have more freedom with changes to these functions.

CHANGELOG.md

@@ -10,6 +10,7 @@
 
 - Changed the Go, Helm, and Scorecard base images to `registry.access.redhat.com/ubi7-dev-preview/ubi-minimal:7.6` ([#1142](https://github.com/operator-framework/operator-sdk/pull/1142))
 - CSV manifest are now versioned according to the `operator-registry` [manifest format](https://github.com/operator-framework/operator-registry#manifest-format). See issue [#900](https://github.com/operator-framework/operator-sdk/issues/900) for more details. ([#1016](https://github.com/operator-framework/operator-sdk/pull/1016))
+- Unexported `CleanupNoT` function from `pkg/test`, as it is only intended to be used internally ([#1167](https://github.com/operator-framework/operator-sdk/pull/1167))
 
 ### Deprecated
 

pkg/test/context.go

@@ -75,9 +75,9 @@ func (ctx *TestCtx) Cleanup() {
 	}
 }
 
-// CleanupNoT is a modified version of Cleanup; does not use t for logging, instead uses log
+// cleanupNoT is a modified version of Cleanup; does not use t for logging, instead uses log
 // intended for use by MainEntry, which does not have a testing.T
-func (ctx *TestCtx) CleanupNoT() {
+func (ctx *TestCtx) cleanupNoT() {
 	failed := false
 	for i := len(ctx.cleanupFns) - 1; i >= 0; i-- {
 		err := ctx.cleanupFns[i]()

pkg/test/main_entry.go

@@ -117,7 +117,7 @@ func MainEntry(m *testing.M) {
 			log.Infof("Local operator stdout: %s", string(localCmdOutBuf.Bytes()))
 			log.Infof("Local operator stderr: %s", string(localCmdErrBuf.Bytes()))
 		}
-		ctx.CleanupNoT()
+		ctx.cleanupNoT()
 		os.Exit(exitCode)
 	}()
 	// create crd