AIDEGen: Remove the srcjar handling from srcs section

Since the *.srcjar are removed from srcs section in
module_bp_java_deps.json by aosp/1125549, so AIDEGen doesn't need to
handle it on source locator.

Bug: 141528361
Test: 1. Patch aosp/1131512
      2. Patch aosp/1133035
      3. Patch aosp/1128936
      4. Patch aosp/1130098
      5. Patch this CL
      6. m aidegen
      7. aidegen-dev framework
      8. Check on there is only 3 errors in both and

Change-Id: I68a1b470f8e2337d493eec6c93312c2f244e521e
4 files changed