Delete the fingerprint APNG file in preference of lottie

This patch deletes the fingerprint animation APNG file since it is no
longer used and is replaced by a lottie animation.

Bug: 976057
Change-Id: I92187e86591f56690d8f15a6b6116a28de5116a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1764334
Commit-Queue: Malay Keshav <malaykeshav@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690169}

ui/chromeos/resources/ui_chromeos_resources.grd

@@ -92,7 +92,6 @@
       <structure type="chrome_scaled_image" name="IDR_PRINT_NOTIFICATION_HELP" file="print_notification/help.png" />
 
       <!-- Fingerprint images. -->
-      <structure type="chrome_scaled_image" name="IDR_LOGIN_FINGERPRINT_SCANNER_TABLET_POWER_BUTTON_ANIMATION" file="fingerprint/fingerprint_scanner_tablet_power_button.png" />
       <structure type="chrome_scaled_image" name="IDR_LOGIN_FINGERPRINT_SCANNER_LAPTOP_BOTTOM_RIGHT_ANIMATION" file="fingerprint/fingerprint_scanner_laptop_bottom_right.png" />
       <structure type="chrome_scaled_image" name="IDR_LOGIN_FINGERPRINT_SCANNER_LAPTOP_TOP_RIGHT_ANIMATION" file="fingerprint/fingerprint_scanner_laptop_top_right.png" />
       <structure type="chrome_html" name="IDR_LOGIN_FINGER_PRINT_TABLET_ANIMATION" file="vector/finger_print.json" compress="gzip" />