[incfs] Call the new isFullyLoaded api where possible

Replace the remaining calls to getFilledRanges() with
isFullyLoaded() where we don't care about the progress

Bug: 183067554
Test: atest IncrementalService

Change-Id: Ic8dc2e3a0ef078353883feef7969b29e11dfa2d0
diff --git a/services/incremental/BinderIncrementalService.cpp b/services/incremental/BinderIncrementalService.cpp
index 5e5be25..052b4dd 100644
--- a/services/incremental/BinderIncrementalService.cpp
+++ b/services/incremental/BinderIncrementalService.cpp
@@ -266,8 +266,7 @@
 
 binder::Status BinderIncrementalService::getLoadingProgress(int32_t storageId,
                                                             float* _aidl_return) {
-    *_aidl_return =
-            mImpl.getLoadingProgress(storageId, /*stopOnFirstIncomplete=*/false).getProgress();
+    *_aidl_return = mImpl.getLoadingProgress(storageId).getProgress();
     return ok();
 }