Fix new/delete mismatch in SkBlockAllocatorTest

Resolves an issue found with mismatched-new-delete in newer GCC.

Change-Id: Ifa7f133a16699d7f6a84f63b07ef4d5fde55dd32
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/468822
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
1 file changed