cherry-pick: 4437 depr memory opt

Merge in DNS/adguard-home from 4437-rm-mem-opt to master

Updates #4437.
Updates #2044.

Squashed commit of the following:

commit d1e5520213f6b68570d18a8d831d4923112901ba
Merge: 73a6b494 8bb95469
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Apr 6 19:37:09 2022 +0300

    Merge branch 'master' into 4437-rm-mem-opt

commit 73a6b4948cb32f1cb79a54b244018b29382fad76
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Apr 6 18:33:23 2022 +0300

    all: imp log of changes

commit a62efcdcd44de300726c906c7f6198c0a02d4ccf
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Apr 6 18:27:42 2022 +0300

    home: depr memory opt

internal/home/home.go

@@ -390,9 +390,6 @@ func run(args options, clientBuildFS fs.FS) {
 	// configure log level and output
 	configureLogger(args)
 
-	// Go memory hacks
-	memoryUsage(args)
-
 	// Print the first message after logger is configured.
 	log.Println(version.Full())
 	log.Debug("current working directory is %s", Context.workDir)