Delete test fields-src-fields-filename; cannot be converted to standard tools.

The new source builder relies only on standard tools. The tag this
test is supposed to trigger cannot be provoked using dpkg-source. When
used with the argument -DSource="some-other-name", it will produce an
error:

    dpkg-source: error: source package has two conflicting values - some-other-name and fields-src-fields-filename
    make: *** [Makefile:37: product] Error 25

The tag was already removed. This removes the test.

Gbp-Dch: ignore
3 jobs for master in 91 minutes and 2 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #281944
stable-bpo

01:26:58

passed #281943
testing

01:29:18

failed #281942
unstable

01:31:02

 
Name Stage Failure
failed
unstable Test

Lintian modified on : Sun, 18 Aug 2019 16:35:27 +0000
cd /builds/lintian/lintian/debian/test-out/tags/checks/binaries/binaries-from-other-arch; /builds/lintian/lintian/frontend/lintian --no-user-dirs --profile debian --allow-root --no-cfg --exp-output format=universal --display-info --display-experimental binaries-from-other-arch_1.0_amd64.changes exited with status 2
bad package file name binaries-from-other-arch_1.0_amd64.changes (neither .deb, .udeb, .changes .dsc or .buildinfo file)

real 51m23.392s
user 35m34.700s
sys 14m42.016s
ERROR: Job failed: exit code 1