[test] Remove unused and outdated test samples

...t-model/tbx11k/ablationcam/targeted_class/test/tb0004.png

...-model/tbx11k/ablationcam/targeted_class/train/tb0005.png

...rect-model/tbx11k/fullgrad/targeted_class/test/tb0004.png

...ect-model/tbx11k/fullgrad/targeted_class/train/tb0005.png

...irect-model/tbx11k/gradcam/targeted_class/test/tb0004.png

...rect-model/tbx11k/gradcam/targeted_class/train/tb0005.png

...ect-model/tbx11k/randomcam/targeted_class/test/tb0004.png

...ct-model/tbx11k/randomcam/targeted_class/train/tb0005.png

...rect-model/tbx11k/scorecam/targeted_class/test/tb0004.png

...ect-model/tbx11k/scorecam/targeted_class/train/tb0005.png