Removed unnecessary dependencies of netty-all

[Coduz]

This PR removes unnecessary imports of netty-all dependency.

Each dependency will import its netty-* transient dependencies on their own.
This also cleans up the startup of the Docker Jetty containers.

Related Issue
None

Description of the solution adopted
Just removed dependencies of netty-all.
In kapua-broker-assembly they were left for simplicity

mvn dependency:tree
Before: netty-all.txt
After: netty-all-removed.txt

Screenshots
None

Any side note on the changes made
None

[codecov]

Codecov Report

Merging #3009 into develop will decrease coverage by 2.02%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #3009      +/-   ##
=============================================
- Coverage      57.58%   55.55%   -2.03%     
+ Complexity      2596     2587       -9     
=============================================
  Files           1062     1062              
  Lines          22988    22988              
  Branches        2043     2043              
=============================================
- Hits           13237    12771     -466     
- Misses          8804     9292     +488     
+ Partials         947      925      -22     

Impacted Files	Coverage Δ	Complexity Δ
...apua/broker/core/plugin/KapuaBrokerErrorCodes.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...r/core/plugin/KapuaDuplicateClientIdException.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...lator/app/deploy/DeploymentPackageInformation.java	0.00% <0.00%> (-93.75%)	0.00% <0.00%> (ø%)
...g/eclipse/kapua/kura/simulator/util/Documents.java	0.00% <0.00%> (-84.62%)	0.00% <0.00%> (ø%)
...kapua/kura/simulator/app/deploy/DownloadState.java	0.00% <0.00%> (-84.62%)	0.00% <0.00%> (ø%)
.../eclipse/kapua/kura/simulator/payload/Message.java	0.00% <0.00%> (-84.22%)	0.00% <0.00%> (ø%)
...imulator/app/deploy/AbstractDeployApplication.java	2.27% <0.00%> (-69.32%)	0.00% <0.00%> (ø%)
...a/kura/simulator/app/deploy/BundleInformation.java	0.00% <0.00%> (-66.67%)	0.00% <0.00%> (ø%)
...a/service/account/internal/AccountCreatorImpl.java	48.57% <0.00%> (-51.43%)	0.00% <0.00%> (ø%)
.../org/eclipse/kapua/kura/simulator/app/Request.java	0.00% <0.00%> (-50.00%)	0.00% <0.00%> (ø%)
... and 34 more