Remove unused code

* we don't need app icon in bubble expanded view (used to have it when
  there was a permission dialog)
* we can query Bubble for the app name, no need to pass it through

Test: manual - it compiles & posting a bubble and expanding it work fine
Change-Id: I2e7cd91e3ba84a7294c2456dfe5e7f26e324bbcb
2 files changed