diff --git a/toolchain/toolchain-wrapper.c b/toolchain/toolchain-wrapper.c
index eb4ee8de4a..100aa181c6 100644
--- a/toolchain/toolchain-wrapper.c
+++ b/toolchain/toolchain-wrapper.c
@@ -22,15 +22,12 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <errno.h>
-#include <time.h>
 
 #ifdef BR_CCACHE
 static char ccache_path[PATH_MAX];
 #endif
 static char path[PATH_MAX];
 static char sysroot[PATH_MAX];
-static char source_time[sizeof("-D__TIME__=\"HH:MM:SS\"")];
-static char source_date[sizeof("-D__DATE__=\"MMM DD YYYY\"")];
 
 /**
  * GCC errors out with certain combinations of arguments (examples are
@@ -42,11 +39,8 @@ static char source_date[sizeof("-D__DATE__=\"MMM DD YYYY\"")];
  * 	-mfloat-abi=
  * 	-march=
  * 	-mcpu=
- * 	-D__TIME__=
- * 	-D__DATE__=
- * 	-Wno-builtin-macro-redefined
  */
-#define EXCLUSIVE_ARGS	6
+#define EXCLUSIVE_ARGS	3
 
 static char *predef_args[] = {
 #ifdef BR_CCACHE
@@ -163,47 +157,6 @@ static void check_unsafe_path(const char *arg,
 	}
 }
 
-/* Read SOURCE_DATE_EPOCH from environment to have a deterministic
- * timestamp to replace embedded current dates to get reproducible
- * results.  Returns -1 if SOURCE_DATE_EPOCH is not defined.
- */
-static time_t get_source_date_epoch()
-{
-	char *source_date_epoch;
-	long long epoch;
-	char *endptr;
-
-	source_date_epoch = getenv("SOURCE_DATE_EPOCH");
-	if (!source_date_epoch)
-		return (time_t) -1;
-
-	errno = 0;
-	epoch = strtoll(source_date_epoch, &endptr, 10);
-	if ((errno == ERANGE && (epoch == LLONG_MAX || epoch == LLONG_MIN))
-			|| (errno != 0 && epoch == 0)) {
-		fprintf(stderr, "environment variable $SOURCE_DATE_EPOCH: "
-				"strtoll: %s\n", strerror(errno));
-		exit(2);
-	}
-	if (endptr == source_date_epoch) {
-		fprintf(stderr, "environment variable $SOURCE_DATE_EPOCH: "
-				"no digits were found: %s\n", endptr);
-		exit(2);
-	}
-	if (*endptr != '\0') {
-		fprintf(stderr, "environment variable $SOURCE_DATE_EPOCH: "
-				"trailing garbage: %s\n", endptr);
-		exit(2);
-	}
-	if (epoch < 0) {
-		fprintf(stderr, "environment variable $SOURCE_DATE_EPOCH: "
-				"value must be nonnegative: %lld \n", epoch);
-		exit(2);
-	}
-
-	return (time_t) epoch;
-}
-
 int main(int argc, char **argv)
 {
 	char **args, **cur, **exec_args;
@@ -214,7 +167,6 @@ int main(int argc, char **argv)
 	char *paranoid_wrapper;
 	int paranoid;
 	int ret, i, count = 0, debug;
-	time_t source_date_epoch;
 
 	/* Calculate the relative paths */
 	basename = strrchr(progpath, '/');
@@ -320,28 +272,6 @@ int main(int argc, char **argv)
 	}
 #endif /* ARCH || CPU */
 
-	source_date_epoch = get_source_date_epoch();
-	if (source_date_epoch != -1) {
-		struct tm *tm = localtime(&source_date_epoch);
-		if (!tm) {
-			perror("__FILE__: localtime");
-			return 3;
-		}
-		ret = strftime(source_time, sizeof(source_time), "-D__TIME__=\"%T\"", tm);
-		if (!ret) {
-			perror("__FILE__: overflow");
-			return 3;
-		}
-		*cur++ = source_time;
-		ret = strftime(source_date, sizeof(source_date), "-D__DATE__=\"%b %e %Y\"", tm);
-		if (!ret) {
-			perror("__FILE__: overflow");
-			return 3;
-		}
-		*cur++ = source_date;
-		*cur++ = "-Wno-builtin-macro-redefined";
-	}
-
 	paranoid_wrapper = getenv("BR_COMPILER_PARANOID_UNSAFE_PATH");
 	if (paranoid_wrapper && strlen(paranoid_wrapper) > 0)
 		paranoid = 1;