diff --git a/firmware/libfirmware b/firmware/libfirmware
index 031210ae1b..a61291f75e 160000
--- a/firmware/libfirmware
+++ b/firmware/libfirmware
@@ -1 +1 @@
-Subproject commit 031210ae1b64ee0a9f354652487afd8ba7bbb8c1
+Subproject commit a61291f75e2b2a02bddd42bb60b6d66e3ee84c85
diff --git a/unit_tests/global_mocks.cpp b/unit_tests/global_mocks.cpp
index fe6ac90ca2..74e3c7f79c 100644
--- a/unit_tests/global_mocks.cpp
+++ b/unit_tests/global_mocks.cpp
@@ -12,16 +12,6 @@ efitimems_t getTimeNowMs() {
 	return US2MS(getTimeNowUs());
 }
 
-extern int timeNowUs;
-
-void setTimeNowUs(int us) {
-	timeNowUs = us;
-}
-
-void advanceTimeUs(int us) {
-	timeNowUs += us;
-}
-
 void initLogging(LoggingWithStorage *logging, const char *name) {
 }