internal/worker: delete TestV1Path
internal/worker: delete TestV1Path

V1Path is not a field on Unit, so this test is deleted. This database
value is tested in internal/postgres.

For golang/go#39629

Change-Id: Ic2611a4d7750959ec6a9130c428fcc849ead234b
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/258310
Trust: Julie Qiu <8d32267b6b4884cf35adeaccde2b6857ae11aace@golang.org>
Run-TryBot: Julie Qiu <8d32267b6b4884cf35adeaccde2b6857ae11aace@golang.org>
TryBot-Result: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Jonathan Amsterdam <e3d3698b2ccd5955e4adf250d0785062d0f9018b@google.com>

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