device: Drop unused function dev_find_matching_device_on_bus

With use of device pointers, `dev_find_matching_device_on_bus()` is
now unused and hence this change drops the function.

Change-Id: I30fcb2d9932d770ca614cceffb15646ce8256465
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57846
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/device/device_const.c

@@ -70,19 +70,6 @@ DEVTREE_CONST struct device *dev_find_path(
 	return result;
 }
 
-DEVTREE_CONST struct device *dev_find_matching_device_on_bus(const struct bus *bus,
-							match_device_fn fn)
-{
-	DEVTREE_CONST struct device *child = NULL;
-
-	while ((child = dev_bus_each_child(bus, child)) != NULL) {
-		if (fn(child))
-			break;
-	}
-
-	return child;
-}
-
 /**
  * Given a device pointer, find the next PCI device.
  *

src/include/device/device.h

@@ -214,20 +214,6 @@ DEVTREE_CONST struct device *dev_find_path(
 		enum device_path_type path_type);
 struct device *dev_find_lapic(unsigned int apic_id);
 int dev_count_cpu(void);
-
-/*
- * Signature for matching function that is used by dev_find_matching_device_on_bus() to decide
- * if the device being considered is the one that matches the caller's criteria. This function
- * is supposed to return true if the provided device matches the criteria, else false.
- */
-typedef bool (*match_device_fn)(DEVTREE_CONST struct device *dev);
-/*
- * Returns the first device on the bus that the match_device_fn returns true for. If no such
- * device is found, it returns NULL.
- */
-DEVTREE_CONST struct device *dev_find_matching_device_on_bus(const struct bus *bus,
-							match_device_fn fn);
-
 struct device *add_cpu_device(struct bus *cpu_bus, unsigned int apic_id,
 				int enabled);
 void set_cpu_topology(struct device *cpu, unsigned int node,