host: remove leftovers from using system clock in tests

There was some leftover constants and a #include we are no longer
using due to using a monotonic counter, clean it up.

BUG=chromium:1013701
BRANCH=none
TEST=buildall

Change-Id: Ieeb130aef9ee89d65459f52c8f34753c30c3c388
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1879335
Reviewed-by: Edward Hill <ecgh@chromium.org>

Makefile.toolchain

@@ -62,7 +62,6 @@ CFLAGS_TEST=$(if $(TEST_BUILD),-DTEST_BUILD=$(EMPTY) \
                                -DTEST_TASKFILE=$(PROJECT).tasklist,) \
             $(if $(CTS_MODULE), $(CFLAGS_CTS)) \
             $(if $(EMU_BUILD),-DEMU_BUILD=$(EMPTY)) \
-            $(if $($(PROJECT)-scale),-DTEST_TIME_SCALE=$($(PROJECT)-scale)) \
             -DTEST_$(PROJECT)=$(EMPTY) -DTEST_$(UC_PROJECT)=$(EMPTY) \
             $(if $(TEST_ASAN),-fsanitize=address) \
             $(if $(TEST_MSAN),-fsanitize=memory) \

core/host/timer.c

@@ -7,33 +7,12 @@
 
 #include <stdint.h>
 #include <stdio.h>
-#include <time.h>
 
 #include "task.h"
 #include "test_util.h"
 #include "timer.h"
 #include "util.h"
 
-/*
- * For test that need to test for longer than the default time limit,
- * adjust its time scale in test/build.mk by specifying
- * <test_name>-scale=<new scale>.
- */
-#ifndef TEST_TIME_SCALE
-#define TEST_TIME_SCALE 1
-#endif
-
-/*
- * To increase the stability of timing sensitive unit tests, slow
- * down the time by 10x. This only affects active run time (including
- * udelay() calls). To an unit test, the only effect is increased code
- * execution speed. However, this comes at the cost of prolonged test
- * run time for tests that use udelay(). Fortunately, most of our tests
- * use usleep/msleep, and for tests that use udelay(), we can scale
- * the time as mentioned above.
- */
-#define TEST_TIME_SLOW_DOWN 10
-
 static timestamp_t boot_time;
 static int time_set;
 

test/build.mk

@@ -109,7 +109,6 @@ fpsensor-y=fpsensor.o
 hooks-y=hooks.o
 host_command-y=host_command.o
 inductive_charging-y=inductive_charging.o
-interrupt-scale=10
 interrupt-y=interrupt.o
 is_enabled-y=is_enabled.o
 kb_8042-y=kb_8042.o