[Ubuntu Touch] Strip OTA update code (#4962)

It distracts the developers. ;-)

Makefile

@@ -290,18 +290,6 @@ utupdate: all
 			"koreader/resources/icons/src/*" "koreader/spec/*" \
 			$(ZIP_EXCLUDE)
 
-	# generate update package index file
-	zipinfo -1 koreader-$(DIST)-$(MACHINE)-$(VERSION).zip > \
-		$(INSTALL_DIR)/koreader/ota/package.index
-	echo "koreader/ota/package.index" >> $(INSTALL_DIR)/koreader/ota/package.index
-	# update index file in zip package
-	cd $(INSTALL_DIR) && zip -u ../koreader-$(DIST)-$(MACHINE)-$(VERSION).zip \
-		koreader/ota/package.index
-	# make gzip update for zsync OTA update
-	cd $(INSTALL_DIR) && \
-		tar -czah --no-recursion -f ../koreader-$(DIST)-$(MACHINE)-$(VERSION).targz \
-		-T koreader/ota/package.index
-
 	# generate ubuntu touch click package
 	rm -rf $(INSTALL_DIR)/tmp && mkdir -p $(INSTALL_DIR)/tmp
 	cd $(INSTALL_DIR)/tmp && \

platform/ubuntu-touch/koreader.sh

@@ -4,16 +4,6 @@ export LC_ALL="en_US.UTF-8"
 # working directory of koreader
 KOREADER_DIR="${0%/*}"
 
-# update to new version from OTA directory
-NEWUPDATE="${KOREADER_DIR}/ota/koreader.updated.tar"
-INSTALLED="${KOREADER_DIR}/ota/koreader.installed.tar"
-if [ -f "${NEWUPDATE}" ]; then
-    # TODO: any graphic indication for the updating progress?
-    cd .. && "${KOREADER_DIR}/tar" xf "${NEWUPDATE}" --no-same-owner --no-same-permissions \
-        && mv "${NEWUPDATE}" "${INSTALLED}"
-    rm -f "${NEWUPDATE}" # always purge newupdate in all cases to prevent update loop
-fi
-
 # we're always starting from our working directory
 cd "${KOREADER_DIR}" || exit