internal/database: don't report errors in logQuery
internal/database: don't report errors in logQuery

Remove the call to the error reporting service in logQuery.  It is at
too low level: in transactions that are retried, it can report an
error even though the error is a serialization failure that is normal
and will cause a retry.

Change-Id: Ia4d4ab354f68bff237adc93a5cf61ff7448a05af
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/298509
Trust: Jonathan Amsterdam <e3d3698b2ccd5955e4adf250d0785062d0f9018b@google.com>
Run-TryBot: Jonathan Amsterdam <e3d3698b2ccd5955e4adf250d0785062d0f9018b@google.com>
TryBot-Result: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Jamal Carvalho <e0195770807aa8c82b0b128d9c0423b5ad035172@golang.org>

golang/pkgsite,golang/pkgsite,golang/pkgsite,golang/pkgsite