chore(genai): remove unused image generation samples 2/5 (#14554)

* chore(genai): remove unused image generation samples

 Deletes unused image generation examples (inpainting removal and mask-free edit) and updates the corresponding tests.

* Fix import order for linter.

Author: XrossFox

genai/image_generation/imggen_inpainting_removal_mask_with_txt_img.py

@@ -22,14 +22,9 @@
 
 from google.cloud import storage
 
-import pytest
-
 import imggen_canny_ctrl_type_with_txt_img
 import imggen_inpainting_insert_mask_with_txt_img
 import imggen_inpainting_insert_with_txt_img
-import imggen_inpainting_removal_mask_with_txt_img
-import imggen_inpainting_removal_with_txt_img
-import imggen_mask_free_edit_with_txt_img
 import imggen_outpainting_with_txt_img
 import imggen_product_background_mask_with_txt_img
 import imggen_product_background_with_txt_img
@@ -41,6 +36,8 @@
 import imggen_virtual_try_on_with_txt_img
 import imggen_with_txt
 
+import pytest
+
 os.environ["GOOGLE_GENAI_USE_ENTERPRISE"] = "True"
 os.environ["GOOGLE_CLOUD_LOCATION"] = "us-central1"
 # The project name is included in the CICD pipeline
@@ -81,18 +78,6 @@ def test_img_edit_inpainting_insert() -> None:
     assert response
 
 
-def test_img_edit_inpainting_removal_mask() -> None:
-    OUTPUT_FILE = os.path.join(RESOURCES, "fruit_edit.png")
-    response = imggen_inpainting_removal_mask_with_txt_img.edit_inpainting_removal_mask(OUTPUT_FILE)
-    assert response
-
-
-def test_img_edit_inpainting_removal() -> None:
-    OUTPUT_FILE = os.path.join(RESOURCES, "fruit_edit.png")
-    response = imggen_inpainting_removal_with_txt_img.edit_inpainting_removal(OUTPUT_FILE)
-    assert response
-
-
 def test_img_edit_product_background_mask() -> None:
     OUTPUT_FILE = os.path.join(RESOURCES, "suitcase_edit.png")
     response = imggen_product_background_mask_with_txt_img.edit_product_background_mask(OUTPUT_FILE)
@@ -111,12 +96,6 @@ def test_img_edit_outpainting() -> None:
     assert response
 
 
-def test_img_edit_mask_free() -> None:
-    OUTPUT_FILE = os.path.join(RESOURCES, "latte_edit.png")
-    response = imggen_mask_free_edit_with_txt_img.edit_mask_free(OUTPUT_FILE)
-    assert response
-
-
 def test_img_customization_subject(output_gcs_uri: str) -> None:
     response = imggen_subj_refer_ctrl_refer_with_txt_imgs.subject_customization(
         output_gcs_uri=output_gcs_uri