Simplify the memtrack cc_binary deps

The libc, libc++abi, and libdl deps are redundant. The toolchain
already switched from libgcc to compiler-rt, so the comment is
out-of-date.

Bug: http://b/175635923
Test: treehugger
Change-Id: Iaeca04946c458f185413a833d42682e7fa0352c7
1 file changed