Re-add metadata passthrough on Get operations

service/datastore/reflect.go

Index: service/datastore/reflect.go
diff --git a/service/datastore/reflect.go b/service/datastore/reflect.go
index c35db230d32c862a755aa7a4127ebf9b8ac63b3f..a2d30c70f8aded02b8c2a24035d0b08ef22a1fed 100644
--- a/service/datastore/reflect.go
+++ b/service/datastore/reflect.go
@@ -12,11 +12,8 @@ import (
 )
 
 var (
-	typeOfBool              = reflect.TypeOf(false)
 	typeOfBSKey             = reflect.TypeOf(blobstore.Key(""))
-	typeOfByteSlice         = reflect.TypeOf([]byte(nil))
 	typeOfByteString        = reflect.TypeOf(ByteString(nil))
-	typeOfFloat64           = reflect.TypeOf(float64(0))
 	typeOfGeoPoint          = reflect.TypeOf(GeoPoint{})
 	typeOfInt64             = reflect.TypeOf(int64(0))
 	typeOfKey               = reflect.TypeOf((*Key)(nil)).Elem()
@@ -25,5 +22,4 @@ var (
 	typeOfString            = reflect.TypeOf("")
 	typeOfTime              = reflect.TypeOf(time.Time{})
 	typeOfToggle            = reflect.TypeOf(Auto)
-	valueOfnilDSKey         = reflect.Zero(typeOfKey)
 )