Revert "[nrf fromlist] tests: driver: nrf_clock_control: Verify that clocks are ready"

This reverts commit 42aca79.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>

Author: rlubos

tests/drivers/clock_control/nrf_clock_control/src/main.c

@@ -194,9 +194,6 @@ static void test_clock_control_request(const struct test_clk_context *clk_contex
 			clk_dev = clk_context->clk_dev;
 			clk_spec = &clk_context->clk_specs[u];
 
-			zassert_true(device_is_ready(clk_dev),
-				     "%s is not ready", clk_dev->name);
-
 			TC_PRINT("Applying clock (%s) spec: frequency %d, accuracy %d, precision "
 				 "%d\n",
 				 clk_dev->name, clk_spec->frequency, clk_spec->accuracy,
@@ -209,6 +206,7 @@ static void test_clock_control_request(const struct test_clk_context *clk_contex
 #if CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUAPP
 ZTEST(nrf2_clock_control, test_cpuapp_hsfll_control)
 {
+
 	TC_PRINT("APPLICATION DOMAIN HSFLL test\n");
 	/* Wait for the DVFS init to complete */
 	k_msleep(3000);
@@ -242,9 +240,6 @@ ZTEST(nrf2_clock_control, test_invalid_fll16m_clock_spec_response)
 			clk_dev = clk_context->clk_dev;
 			clk_spec = &clk_context->clk_specs[u];
 
-			zassert_true(device_is_ready(clk_dev),
-				     "%s is not ready", clk_dev->name);
-
 			TC_PRINT("Applying clock (%s) spec: frequency %d, accuracy %d, precision "
 				 "%d\n",
 				 clk_dev->name, clk_spec->frequency, clk_spec->accuracy,
@@ -290,9 +285,6 @@ ZTEST(nrf2_clock_control, test_safe_request_cancellation)
 	const struct device *clk_dev = clk_context->clk_dev;
 	const struct nrf_clock_spec *clk_spec = &test_clk_specs_lfclk[0];
 
-	zassert_true(device_is_ready(clk_dev),
-		     "%s is not ready", clk_dev->name);
-
 	TC_PRINT("Safe clock request cancellation\n");
 	TC_PRINT("Clock under test: %s\n", clk_dev->name);
 	sys_notify_init_spinwait(&cli.notify);