chore: remove environment.yml file as it is no longer needed

environment.yml

@@ -1,27 +0,0 @@
-name: inferbench
-channels:
-  - conda-forge
-  - defaults
-dependencies:
-  - python=3.12
-  - numpy
-  - opencv
-  - pillow
-  - python-dotenv
-  - requests
-  - tqdm
-  - pip
-  - pip:
-      - datasets==3.6.0
-      - fal-client>=0.5.9
-      - hpsv2>=1.2.0
-      - huggingface-hub>=0.30.2
-      - image-reward>=1.5
-      - replicate>=1.0.4
-      - t2v-metrics>=1.2
-      - together>=1.5.5
-      - torch>=2.7.0
-      - torchmetrics>=1.7.1
-      - clip
-      - diffusers<=0.31
-      - piq>=0.8.0