Bug#1112033: delve build fails for ppc64le and riscv64

[tshah]

Package: delve
Version: 1.24.0-4
Severity: normal

The package fails to build on ppc64le and riscv64. See 
https://buildd.debian.org/status/architecture.php?a=ppc64el&suite=sid

Able to reproduce the issue while building the package on pp64el and 
checked the  build logs from pp64el. The issue seems to be dh_auto_build 
being used twice in debian/rules. I am checking more on this.