remove duplicated adjust_brightness in paddle frontend (#22271)

Author: juliagsy

ivy/functional/frontends/paddle/vision/transforms.py

@@ -1,5 +1,4 @@
 import ivy
-import ivy.numpy as np
 from ivy.func_wrapper import (
     with_supported_dtypes,
     with_unsupported_device_and_dtypes,
@@ -10,25 +9,6 @@
 )
 
 
-@with_unsupported_dtypes({"2.5.1 and below": ("float16", "bfloat16")}, "paddle")
-# Return the brightness-adjusted image
-def adjust_brightness(img, brightness_factor):
-    # Assuming img is a numpy array or Ivy array
-    if ivy.is_array(img):
-        # Adjust brightness compositionally using ivy.add and ivy.multiply
-        adjusted_img = ivy.add(ivy.multiply(img, brightness_factor), (1 - brightness_factor))
-        return adjusted_img
-    elif isinstance(img, Image.Image):
-        # Convert image to Ivy array
-        img_array = np.array(img)
-        adjusted_img_array = ivy.add(ivy.multiply(img_array, brightness_factor), (1 - brightness_factor))
-        # Convert Ivy array back to image
-        adjusted_img_pil = Image.fromarray(adjusted_img_array.astype('uint8'))
-        return adjusted_img_pil
-    else:
-        raise ValueError("Unsupported input format")
-
-
 @with_supported_dtypes(
     {"2.5.1 and below": ("float32", "float64", "int32", "int64")}, "paddle"
 )