Revert "Issue #3370946 by kunal.sachdev, lauriii, tim.plunkett, omkar.podey, alexpott, ckrina, smustgrave, larowlan, rkoller, hooroomoo, duadua: Page title should contextualize the local navigation"

This reverts commit ad606a8f.

Issue #3370946 by kunal.sachdev, lauriii, tim.plunkett, omkar.podey, alexpott, ckrina, smustgrave, larowlan, rkoller, hooroomoo, duadua: Page title should contextualize the local navigation

Issue #3261486 by catch, longwave, dww: Remove core updates added prior to 9.3.0 and adjust test coverage

Issue #1932810 by Berdir, jibran, joegraduate, joelpittet, JeroenT, RenatoG, tim.plunkett, tedbow, andypost, paulocs, hugronaphor, ankithashetty, Meenakshi_j, chr.fritsch, Beanjammin, nikitagupta, EclipseGc, dawehner, xjm, alexpott, fago, tstoeckler, catch, seanB, larowlan: Add entity bundles condition plugin for entities with bundles

Issue #3106666 by catch, jungle, xjm, alexpott, tim.plunkett, Berdir: Remove post updates added prior to 8.8.0

Issue #3047866 by mikelutz, Berdir, TR, alexpott, andypost, Satyanarayan Reddy: Remove usage of deprecated \Drupal::entityManager() in core

Issue #2572613 by Malevi4, idebr, pfrenssen, Mile23, RajeevK: Fix 'Drupal.Array.Array.CommaLastItem' coding standard

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2811519 by tim.plunkett, dbourrion, cilefen, futurmat: Blocks do not appear after being placed with the Rules module enabled (or other missing schemata for Condition plugins)

Issue #2513534 by tim.plunkett, lokapujya, tedbow, LewisNyman, Manjit.Singh, alexpott, Maninders, Bojhan: Remove the 'disabled' region from Block UI

Issue #2538108 by dawehner, jhedstrom: Add hook_post_update_X() for data value updates to reliably run after data format updates