Makefile.real: Remove duplicate $build_date.

This was introduced one year ago in commit e080d112.

diff --git a/Makefile.real b/Makefile.real
index 289e027a0b387acd26259624dbce45fd0c823eb9..cc8225ba07852de3779fd21742b59442ba0cf336 100644 (file)
--- a/Makefile.real
+++ b/Makefile.real
@@ -19,7 +19,6 @@ uname_s := $(shell uname -s 2>/dev/null || echo "UNKNOWN_OS")
 uname_rs := $(shell uname -rs)
 cc_version := $(shell $(CC) --version | head -n 1)
 GIT_VERSION := $(shell ./GIT-VERSION-GEN git-version.h)
-build_date := $(shell date)
 
 ifeq ("$(origin O)", "command line")
        build_dir := $(O)