Remove support for energy and heartbeats profiling

[SimonSapin]

Both are disabled by default (energy at compile-time, heartbeats with a run-time option). Neither is tested of CI. Neither has been used in a long time. They might have Undefined Behavior: #26550 (comment). They each depend on a mostly-unmaintained C library. The thread-safety expectation of those libraries are unknown.

[jdm]

error[E0061]: this function takes 5 arguments but 7 arguments were supplied
    --> components/layout_thread/lib.rs:1453:13
     |
1453 |             profile_time::send_profile_data(
     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 5 arguments
1454 |                 profile_time::ProfilerCategory::LayoutTextShaping,
     |                 -------------------------------------------------
1455 |                 self.profiler_metadata(),
     |                 ------------------------
1456 |                 &self.time_profiler_chan,
     |                 ------------------------
1457 |                 0,
     |                 -
1458 |                 text_shaping_time as u64,
     |                 ------------------------
1459 |                 0,
     |                 -
1460 |                 0,
     |                 - supplied 7 arguments
error: aborting due to previous error
For more information about this error, try `rustc --explain E0061`.
error: could not compile `layout_thread_2013`.

[jdm]

This whole file can be removed; it only documents the logs for heartbeat profiling.

[SimonSapin]

Fixed both and squashed

[jdm]

@bors-servo r+

[bors-servo]

📌 Commit 79d363a has been approved by jdm

[SimonSapin]

Updated unit tests for removed parameters.

@bors-servo r=jdm

[bors-servo]

📌 Commit b282bd3 has been approved by jdm

[bors-servo]

⌛ Testing commit b282bd3 with merge 98fe360...

[bors-servo]

☀️ Test successful - status-taskcluster
Approved by: jdm
Pushing 98fe360 to master...