Dump deps for native and java to json files.

Abandon the use of SOONG_COLLECT_CC_DEPS and SOONG_COLLECT_JAVA_DEPS,
soong can generate module_bp_cc_deps.json and module_bp_java_deps.json
without passing any variables.

BUG: 204397180

Test: rm out/soong/module_bp*json
"m nothing" should see both json files were generated.

Change-Id: If30ad5dbabb6709f834134cbc9a513a9bdc9d9de