suppressing the "SA9003: empty branch (staticcheck)" instead of commenting-out
or removing these lines because removing/commenting these lines causes a ripple
effect of changes, and there's still a to-do below.
```
13:06:14 daemon/graphdriver/graphtest/graphbench_unix.go:175:3: SA9003: empty branch (staticcheck)
13:06:14 if applyDiffSize != diffSize {
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>