Remove support for manual memory management in GrVkMemory.
Remove support for manual memory management in GrVkMemory.

These code paths are no longer used now that the GrBackendTexture code
uses the normal Ganesh code paths.

Change-Id: Idecf6876d96c7be587919f969d4736374d82c199
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/289623
Reviewed-by: Jim Van Verth <509afb0bfbb23ecaaf1fb3323209f531b45e75a6@google.com>
Commit-Queue: Greg Daniel <39df0a804564ccb6cf75f18db79653821f37c1c5@google.com>

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia