Librera PRO: remove 8.3.53-fdroid (3780)

Outdated, failing build.

metadata/com.foobnix.pro.pdf.reader.yml

@@ -358,32 +358,6 @@ Builds:
       - ./link_to_mupdf_1.16.1.sh
     ndk: r21
 
-  - versionName: 8.3.53-fdroid
-    versionCode: 3780
-    commit: 8.3.53
-    subdir: app/
-    sudo:
-      - apt-get update || apt-get update
-      - apt-get install -y g++ mesa-common-dev libxcursor-dev libxrandr-dev libxinerama-dev
-        libglu1-mesa-dev libxi-dev
-    gradle:
-      - fdroid
-    srclibs:
-      - MuPDF@1.16.1
-    rm:
-      - Builder/libs/
-    prebuild:
-      - sed -i -e '/F-DROID REMOVE THIS LINE/,+1d' ../build.gradle
-      - sed -i -e '/com.google.gms.google-services/d' -e '/com.google.android.gms/d'
-        -e '/com.cloudrail/d' -e '/include "armeabi-v7a", "arm64-v8a"/d' build.gradle
-      - sed -i -e '/^#!/a\set -e' -e 's|git clone .*|ln -s $$MuPDF$$ mupdf-$VERSION|'
-        -e 's/ndk-build $1/& -j`nproc` || exit 1/' ../Builder/link_to_mupdf_1.16.1.sh
-      - mkdir src/main/jniLibs/
-    build:
-      - pushd ../Builder/
-      - ./link_to_mupdf_1.16.1.sh
-    ndk: r21
-
   - versionName: 8.3.69-fdroid
     versionCode: 3869
     commit: 8.3.69