Bug 26411: Stop using old MAR format in the second esr60-based stable release

Makefile

@@ -113,7 +113,7 @@ signtag-alpha: submodule-update
 incrementals-release: submodule-update
 	$(rbm) build release --step update_responses_config --target release --target create_unsigned_incrementals
 	tools/update-responses/download_missing_versions release
-	MAR_OLD_FORMAT=1 tools/update-responses/gen_incrementals release
+	tools/update-responses/gen_incrementals release
 	$(rbm) build release --step hash_incrementals --target release
 
 incrementals-alpha: submodule-update
@@ -132,9 +132,9 @@ update_responses-alpha: submodule-update
 
 dmg2mar-release: submodule-update
 	$(rbm) build release --step update_responses_config --target release --target signed
-	MAR_OLD_FORMAT=1 $(rbm) build release --step dmg2mar --target release --target signed
+	$(rbm) build release --step dmg2mar --target release --target signed
 	tools/update-responses/download_missing_versions release
-	CHECK_CODESIGNATURE_EXISTS=1 MAR_SKIP_EXISTING=1 MAR_OLD_FORMAT=1 tools/update-responses/gen_incrementals release
+	CHECK_CODESIGNATURE_EXISTS=1 MAR_SKIP_EXISTING=1 tools/update-responses/gen_incrementals release
 
 dmg2mar-alpha: submodule-update
 	$(rbm) build release --step update_responses_config --target alpha --target signed

projects/tor-browser/build

@@ -274,11 +274,6 @@ popd
 cd $distdir
 
 [% IF c("var/build_mar") -%]
-  [% IF c("var/release") -%]
-    # Let's use the bzip2 format for now so that users can update to the first
-    # esr60-based Tor Browser.
-    export MAR_OLD_FORMAT=1
-  [% END -%]
   # Create full MAR file and compressed package.
   MAR_FILE=tor-browser-[% c("var/mar_osname") %]-[% c("var/torbrowser_version") %]_${PKG_LOCALE}.mar
   MAR=$MARTOOLS/mar MBSDIFF=$MARTOOLS/mbsdiff $MARTOOLS/make_full_update.sh -q $OUTDIR/$MAR_FILE "$TBDIR"