[Core] Don't send keyboard reports that propagate no changes to the host (#14065)

tests/test_common/test_fixture.cpp

@@ -48,7 +48,6 @@ void TestFixture::SetUpTestCase() {
     eeconfig_update_debug(debug_config.raw);
 
     TestDriver driver;
-    EXPECT_CALL(driver, send_keyboard_mock(_));
     keyboard_init();
 
     test_logger.info() << "TestFixture setup-up end." << std::endl;
@@ -62,8 +61,6 @@ TestFixture::~TestFixture() {
     test_logger.info() << "TestFixture clean-up start." << std::endl;
     TestDriver driver;
 
-    EXPECT_CALL(driver, send_keyboard_mock(KeyboardReport())).Times(2);
-
     /* Reset keyboard state. */
     clear_all_keys();