Revert "package/tzdata: install a default localtime"

This reverts commit f96e4d7f348ce1b7b53763f102bbedb1ef6a1991.

As suggested by Thomas, we need to find a single solution that is
valid for both (e)glibc and uClibc.

There is work on-going by Alexandre, so just revert this for now.

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/tzdata/Config.in

@@ -23,14 +23,4 @@ config BR2_PACKAGE_TZDATA_ZONELIST
 	  The full list is the list of files in the time zone database source,
 	  not including the build and .tab files.
 
-config BR2_PACKAGE_TZDATA_LOCALTIME
-	string "default local time"
-	help
-	  The time zone to install as the default local time, expressed as a
-	  tzdata location, such as:
-	    GMT, Europe/Paris, America/New_York, Pacific/Wallis...
-
-	  If empty, no local time will be set, and the dates will be
-	  expressed in UTC.
-
 endif

package/tzdata/tzdata.mk

@@ -39,14 +39,8 @@ define TZDATA_INSTALL_TARGET_CMDS
 	cp -a $(@D)/_output/* $(TARGET_DIR)/usr/share/zoneinfo
 	cd $(TARGET_DIR)/usr/share/zoneinfo;    \
 	for zone in posix/*; do                 \
-	    ln -sfn "$${zone}" "$${zone##*/}";  \
+	    ln -sfn "$${zone}" "$${zone##*/}";    \
 	done
-	if [ -n "$(BR2_PACKAGE_TZDATA_LOCALTIME)" ]; then                   \
-	    cd $(TARGET_DIR)/etc;                                           \
-	    ln -sf ../usr/share/zoneinfo/$(BR2_PACKAGE_TZDATA_LOCALTIME)    \
-	           localtime;                                               \
-	    echo "$(BR2_PACKAGE_TZDATA_LOCALTIME)" >timezone;               \
-	fi
 endef
 
 $(eval $(generic-package))