Remove implicit Bionic and kernel system includes.

They are now explicit in the Bionic blueprints, and brought in through
dependencies on libc (which in turn is usually implicit through the
default system_shared_libs value). Modules that may break are cc_object
which don't depend on system_shared_libs, and those that explicitly set
system_shared_libs:[] but still assumes libc headers. In either case
the fix should be to add header_libs:["libc_headers"].

Test: Build and boot
Test: m checkbuild (on aosp_taimen and aosp_x86_64)
Bug: 153590472
Change-Id: I3217d8f36e49a987f5377866c8647f9dcccc37ce