drm/bridge: analogix: remove unused struct 'bridge_init'

commit 6a1688a ("drm/bridge: ptn3460: Convert to I2C driver model")
has dropped all the users of the struct bridge_init from the
exynos_dp_core, while retaining unused structure definition.
Later on the driver was reworked and the definition migrated
to the analogix_dp driver. Remove unused struct bridge_init definition.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240520125551.11534-1-linux@treblig.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

@@ -36,11 +36,6 @@
 
 static const bool verify_fast_training;
 
-struct bridge_init {
-	struct i2c_client *client;
-	struct device_node *node;
-};
-
 static void analogix_dp_init_dp(struct analogix_dp_device *dp)
 {
 	analogix_dp_reset(dp);