[HOTFIX]Compilation error in assembly module as it could not resolve the mv-core dependency
[HOTFIX]Compilation error in assembly module as it could not
resolve the mv-core dependency

Why is this PR needed?
Recent PR #3692 removes carbondata-mv-core module and part of the
code is moved to carbondata-spark module.
But assembly module still has dependency to mv-core in its pom.

What changes were proposed in this PR?
Removed carbondata-mv-core dependency from assembly module.

This closes #3728

zzcclp/carbondata,zzcclp/carbondata,zzcclp/carbondata,zzcclp/carbondata,zzcclp/carbondata