Build.sh: no need to list minimaven's dependencies explicitly

We use scijava-common's maven-helper that knows how to determine
dependencies by inspecting the .pom file directly.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Build.sh: force MiniMaven update when Build.sh changed

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>