build: Remove unused `$(DATE)` variable

This commits removes the unused `$(DATE)` variable from the build
system. Build time and date is available with the `$(HOSTUTC)`
variable.

Signed-off-by: Simon Kuenzer <simon@unikraft.io>
Reviewed-by: Cezar Craciunoiu <cezar.craciunoiu@unikraft.io>
Reviewed-by: Rares Miculescu <miculescur@gmail.com>
Approved-by: Razvan Deaconescu <razvand@unikraft.io>
GitHub-Closes: #1127

diff --git a/Makefile b/Makefile
index eb908728d8a421bb4c7122d8e657a7afe434703a..071c84a6f65e027897f59ce5d9cfe21b884b9bff 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -261,8 +261,6 @@ else
 export UK_FULLVERSION := $(UK_VERSION).$(UK_SUBVERSION)$(shell cd $(CONFIG_UK_BASE); $(SCRIPTS_DIR)/gitsha1)
 endif
 
-export DATE := $(shell date +%Y%m%d)
-
 # Makefile targets
 null_targets           := print-version print-vars help
 nokconfig_targets       := properclean distclean $(null_targets)