Switch alias.go to new logging pkg layout

This switches alias.go over to the new logging layout.  In order to
avoid alias.go pulling in Zap, we don't put ZapLogger in alias.go any
more.  Practically, this is probably fine.  It means an extra line in
main.go, but it's just one, and allows people to avoid extraneous
dependencies.

alias.go

@@ -26,7 +26,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
-	"sigs.k8s.io/controller-runtime/pkg/runtime/log"
+	"sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/runtime/scheme"
 	"sigs.k8s.io/controller-runtime/pkg/runtime/signals"
 )
@@ -126,10 +126,4 @@ var (
 
 	// SetLogger sets a concrete logging implementation for all deferred Loggers.
 	SetLogger = log.SetLogger
-
-	// ZapLogger is a Logger implementation.
-	// If development is true, a Zap development config will be used
-	// (stacktraces on warnings, no sampling), otherwise a Zap production
-	// config will be used (stacktraces on errors, sampling).
-	ZapLogger = log.ZapLogger
 )