tests: remove manual `CONFIG_GPIO_EMUL`
Remove the manual selection of `CONFIG_GPIO_EMUL` as it is now enabled
by default when devicetree nodes exist.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
diff --git a/tests/drivers/gpio/gpio_api_1pin/boards/native_posix.conf b/tests/drivers/gpio/gpio_api_1pin/boards/native_posix.conf
deleted file mode 100644
index cc7d823..0000000
--- a/tests/drivers/gpio/gpio_api_1pin/boards/native_posix.conf
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright (c) 2020 Friedt Professional Engineering Services, Inc
-# SPDX-License-Identifier: Apache-2.0
-
-CONFIG_GPIO_EMUL=y
diff --git a/tests/drivers/gpio/gpio_api_1pin/boards/native_posix_64.conf b/tests/drivers/gpio/gpio_api_1pin/boards/native_posix_64.conf
deleted file mode 100644
index cc7d823..0000000
--- a/tests/drivers/gpio/gpio_api_1pin/boards/native_posix_64.conf
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright (c) 2020 Friedt Professional Engineering Services, Inc
-# SPDX-License-Identifier: Apache-2.0
-
-CONFIG_GPIO_EMUL=y
diff --git a/tests/drivers/gpio/gpio_basic_api/boards/native_posix.conf b/tests/drivers/gpio/gpio_basic_api/boards/native_posix.conf
deleted file mode 100644
index cc7d823..0000000
--- a/tests/drivers/gpio/gpio_basic_api/boards/native_posix.conf
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright (c) 2020 Friedt Professional Engineering Services, Inc
-# SPDX-License-Identifier: Apache-2.0
-
-CONFIG_GPIO_EMUL=y
diff --git a/tests/drivers/gpio/gpio_basic_api/boards/native_posix_64.conf b/tests/drivers/gpio/gpio_basic_api/boards/native_posix_64.conf
deleted file mode 100644
index cc7d823..0000000
--- a/tests/drivers/gpio/gpio_basic_api/boards/native_posix_64.conf
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright (c) 2020 Friedt Professional Engineering Services, Inc
-# SPDX-License-Identifier: Apache-2.0
-
-CONFIG_GPIO_EMUL=y
diff --git a/tests/subsys/pm/device_wakeup_api/prj.conf b/tests/subsys/pm/device_wakeup_api/prj.conf
index 2bb16fd..b62b5f0 100644
--- a/tests/subsys/pm/device_wakeup_api/prj.conf
+++ b/tests/subsys/pm/device_wakeup_api/prj.conf
@@ -4,4 +4,3 @@
CONFIG_PM_POLICY_APP=y
CONFIG_GPIO=y
-CONFIG_GPIO_EMUL=y
