interanal/core/runtime: remove commented out fields

Change-Id: I887c6b6f458fa410c2f2ebbe8ede527c0296c5f0
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/9763
Reviewed-by: CUE cueckoo <cueckoo@gmail.com>
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/cue/instance.go b/cue/instance.go
index 18d4e6d..927f23d 100644
--- a/cue/instance.go
+++ b/cue/instance.go
@@ -57,8 +57,6 @@
 	Err        errors.Error // non-nil if the package had errors
 
 	inst *build.Instance
-
-	// complete bool // for cycle detection
 }
 
 type hiddenInstance = Instance
@@ -245,7 +243,6 @@
 
 	p := addInst(i.index, &Instance{
 		root: v,
-		// complete: true,
 	})
 	return p
 }
@@ -280,8 +277,6 @@
 		i.setListOrError(err)
 	}
 
-	// i.complete = true
-
 	return i
 }
 
diff --git a/internal/core/runtime/imports.go b/internal/core/runtime/imports.go
index 694a0bb..243db4f 100644
--- a/internal/core/runtime/imports.go
+++ b/internal/core/runtime/imports.go
@@ -66,9 +66,7 @@
 	builtinPaths   map[string]PackageFunc // Full path
 	builtinShort   map[string]string      // Commandline shorthand
 
-	// mutex     sync.Mutex
 	typeCache sync.Map // map[reflect.Type]evaluated
-
 }
 
 func newIndex() *index {