Bug#861903: groovy: Do not depend on junit4

[Mykola Nikishov]

Package: groovy
Version: 2.4.8-1
Severity: minor

It seems junit4 is not required for package to function correctly, Recommends or Suggests should be fine (like with dependency on testng).

-- System Information:
Debian Release: 9.0
  APT prefers stable
  APT policy: (500, 'stable'), (70, 'unstable'), (60, 'testing'), (50, 'experimental'), (40, 'oldstable')
Architecture: amd64
 (x86_64)

Kernel: Linux 4.9.0-3-rt-amd64 (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages groovy depends on:
ii  antlr                                            2.7.7+dfsg-7
ii  default-jre-headless [java6-runtime-headless]    2:1.8-58
ii  ivy                                              2.4.0-3
ii  junit4                                           4.12-4
ii  libasm-java                                      5.2-2
ii  libbsf-java                                      1:2.4.0-5
ii  libcommons-cli-java                              1.3.1-3
ii  libcommons-logging-java                          1.2-1
ii  libjansi-java                                    1.14-1
ii  libjline2-java                                   2.11-4
ii  libqdox-java                                     1.12.1-2
ii  libservlet3.1-java                               8.5.12-1
ii  libxstream-java                                  1.4.9-1
ii  openjdk-8-jre-headless [java6-runtime-headless]  8u131-b11-1

Versions of packages groovy recommends:
ii  ant                   1.9.9-1
ii  ant-optional          1.9.9-1
pn  libgpars-groovy-java  <none>
pn  libjcommander-java    <none>
pn  testng                <none>

Versions of packages groovy suggests:
ii  groovy-doc  2.4.8-1

-- no debconf information