Bug#889875: golang-github-dgrijalva-jwt-go: use default go compiler

[Emilio Pozuelo Monfort]

Source: golang-github-dgrijalva-jwt-go
Version: 3.0.0.1+REALLY.2.6.0-2
Severity: serious

Hi,

Your package build-depends on:

  golang-any | go-compiler, gccgo-6 (>= 6.2.0-6~)

Perhaps gccgo-6 was added to set a minimum version, but since gccgo now depends
on gccgo-7 and we want to remove gcc-6 (and so gccgo-6), please remove that
and let golang-any | go-compiler install the go compiler.

Thanks,
Emilio