Drop dnet-deps repository

[przemyslawjacewicz]

Following DNet maven repositories update we have added dnet-deps repository to IIS

        <repository>
            <id>dnet-deps</id>
            <name>dnet deps</name>
            <url>https://maven.d4science.org/nexus/content/repositories/dnet-deps/</url>
            <layout>default</layout>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
            <releases>
                <enabled>true</enabled>
            </releases>
        </repository>

This repository is a 'transitive' repository referenced through IIS dependencies. This was done to avoid large build times due to timeouts when downloading dependencies. We should remove this repository when DNet libs with updated repositories are released.

[przemyslawjacewicz]

I've removed DNet libs from my local maven repo and built IIS. I can still find dnet-deps repository with old URL in dnet45-parent. So this issue remains open.