Issue #2062043 by eelkeblok, longwave, rhm50, InternetDevels, alvar0hurtad0, Xano: Replace user_access() calls with $account->hasPermission() in core files.

Issue #2080311 by rhm50, amitgoyal, InternetDevels, Rajesh Ashok, pfrenssen, natemow, areke, chertzog | mrsinguyen: Clean up Drupal\system\Tests\Database\SelectTest.php.

Issue #2061977 by InternetDevels, kim.pepper, ianthomas_uk, herom, rhm50, naveenvalecha, andypost,  mandar.harkare, sergeypavlenko, sidharthap, SIz, tkuldeep17: Replace user_access() calls with ->hasPermission() in all core modules except user.

Issue #2080105 by rhm50: Remove Unused local variable  from /core/modules/system/lib/Drupal/system/Tests/Plugin/CacheDecoratorTest.php.

Issue #2072625 by rhm50, legolasbo: Remove Unused local variable  from /core/modules/views/lib/Drupal/views/Tests/Handler/FilterDateTest.php.

Issue #2067529 by mrded, rhm50: Remove Unused local variable  from /core/modules/views/lib/Drupal/views/ManyToOneHelper.php.

Issue #2080113 by deneo, rhm50: Remove Unused local variable $plugin_id from /core/modules/system/lib/Drupal/system/Tests/Plugin/CacheDecoratorLanguageTest.php.

Issue #2067993 by rhm50: Remove Unused local variable  from /core/modules/node/lib/Drupal/node/Tests/NodeTranslationUITest.php.

Issue #2080317 by rhm50: Remove Unused local variables from /core/modules/system/lib/Drupal/system/Tests/Database/SelectComplexTest.php.

Issue #2062017 by InternetDevels, rhm50, wesleydv, DeimoS: Replace user_access() calls with ->hasPermission() in rdf module.

Issue #2002650 by mrsinguyen, chertzog, legolasbo, Erik Erskine, rhm50, sandergo90, grisendo, targoo, janstoeckler, maximpodorov, beowulf1416: Improve maintainability by removing unused local variables.

Issue #2080071 by rhm50: Remove Unused local variable $base_url() from /core/modules/system/system.install.

Issue #2062023 by rhm50, InternetDevels: Replace user_access() calls with $account->hasPermission() in statistics module.

Issue #2061983 by InternetDevels, rhm50: Replace user_access() calls with ->hasPermission() in edit module.

Issue #2062021 by rhm50, InternetDevels: Replace user_access() calls with ->hasPermission() in shortcut module.

Issue #2062031 by InternetDevels, rhm50: Replace user_access() calls with ->hasPermission() in tour module.

Issue #2061979 by rhm50, InternetDevels: Replace user_access() calls with ->hasPermission() in contextual module.

Issue #2068135 by rhm50: Remove Unused local variable () from /core/modules/node/lib/Drupal/node/Tests/NodeAccessLanguageTest.php.