Merge pull request #1104 from bernd70/master

[Health] Deleting entries in iOS only selects own entries

To reproduce the issue:
Add data to the iOS Health using the "Add Data" button in example app, and try to delete using the "Delete Data" button. The steps, for example, will always be there and won't be deleted.

packages/health/ios/Classes/SwiftHealthPlugin.swift

@@ -731,12 +731,15 @@ public class SwiftHealthPlugin: NSObject, FlutterPlugin {
 
         let dataType = dataTypeLookUp(key: dataTypeKey)
 
-        let predicate = HKQuery.predicateForSamples(
+        let samplePredicate = HKQuery.predicateForSamples(
             withStart: dateFrom, end: dateTo, options: .strictStartDate)
+        let ownerPredicate = HKQuery.predicateForObjects(from: HKSource.default())
         let sortDescriptor = NSSortDescriptor(key: HKSampleSortIdentifierEndDate, ascending: false)
 
         let deleteQuery = HKSampleQuery(
-            sampleType: dataType, predicate: predicate, limit: HKObjectQueryNoLimit,
+            sampleType: dataType,
+            predicate: NSCompoundPredicate(andPredicateWithSubpredicates: [samplePredicate, ownerPredicate]),
+            limit: HKObjectQueryNoLimit,
             sortDescriptors: [sortDescriptor]
         ) { [self] x, samplesOrNil, error in