vendor: bootanimation: reduce size

reduce bootanimation size by decreasing image quality.
set the quality value to 50 for all resolutions.

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: Ic9538859526e0fcfdb319f64884f477313c0a6fd
diff --git a/prebuilt/bootanimation/res/generate-packages.sh b/prebuilt/bootanimation/res/generate-packages.sh
index 8448105..db0b626 100755
--- a/prebuilt/bootanimation/res/generate-packages.sh
+++ b/prebuilt/bootanimation/res/generate-packages.sh
@@ -48,6 +48,9 @@
 EOF
 }
 
+# image quality
+quality=50;
+
 # reading images
 for i in ${RESOLUTIONS}; do
 
@@ -68,17 +71,6 @@
     echo "Rewriting desc.txt...";
     rewrite_desc "${i}"
 
-#   set image quality
-#   add an aggressive value for low resolutions
-    case "${i}" in
-        "360x240"|"420x280"|"480x320")
-            quality=80;
-        ;;
-        *)
-            quality=90;
-        ;;
-    esac
-
     echo "Resizing images...";
     for j in Part*/*.jpg; do
         convert_image "${j}" "${i}" $quality;