Revert "Find native libraries on the system"

This reverts commit 58bb2660858d9cc14a63a282ec2b53260e353ea0.

dist/linux/debian/postinst

@@ -24,7 +24,6 @@ case "$1" in
           mkdir -p /usr/share/desktop-directories
         fi
         xdg-desktop-menu install --novendor /usr/share/applications/org.cryptomator.Cryptomator.desktop
-        sed -i s/Exec=cryptomator\\s%F/Exec=LD_LIBRARY_PATH=\\/usr\\/lib\\/x86_64-linux-gnu\ cryptomator\ %F/ /usr/share/applications/org.cryptomator.Cryptomator.desktop
         xdg-mime install /usr/share/mime/packages/application-vnd.cryptomator.vault.xml
     ;;