Revert "Use to the new panic-immediate-abort cargo feature"

This reverts commit cf10e2ff6d.

Reason for revert: Incompatible with renovate

app/src/main/cpp/CMakeLists.txt

@@ -145,6 +145,7 @@ corrosion_import_crate(
         FEATURES $<IF:$<VERSION_GREATER_EQUAL:${ANDROID_NATIVE_API_LEVEL},26>,android-26,android>
         FLAGS $<$<NOT:$<CONFIG:Debug>>:-Z build-std -Z build-std-features=>
 )
+corrosion_add_target_rustflags(ehviewer_rust $<$<NOT:$<CONFIG:Debug>>:-Z unstable-options -C panic=immediate-abort>)
 corrosion_link_libraries(ehviewer_rust android jnigraphics log webp webpdemux)
 
 # Build and link our app's native lib