Drop legacy duplicated code

[slawekjaranowski]

Right now Maven 4 (same as 3) contains duplicated code to read update status, and due this in-JVM but also process wide synchronization is needed.

For start, drop Maven legacy code and use resolver component to perform reads.

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[slawekjaranowski]

cherry pick from:

• Drop legacy duplicated code #11494

[cstamas]

Looks good, will pass once Resolver 1.9.25 is out.

[cstamas]

Unsure would I migrate this from plx to sisu; moreover, undoing this change will make other UT changes unneeded (index scanning)

[cstamas]

Just make/leave this plain old plx component with field injection instead, and as said above, it will leave things less intrusive re UTs