[llvm] [AMDGPU] IGroupLP: Refactor SchedGroup::initSchedGroup (NFC) (PR #184122)

[Frederik Harwath via llvm-commits]

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@@ -2572,43 +2568,17 @@ bool SchedGroup::canAddSU(SUnit &SU) const {
   return std::all_of(B, E, [this](MachineInstr &MI) { return canAddMI(MI); });
 }
 
-void SchedGroup::initSchedGroup() {
-  for (auto &SU : DAG->SUnits) {
-    if (isFull())
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frederik-h wrote:

This is useless because the the SCHED_BARRIERs for which this function is used do not have a MaxSize.

https://github.com/llvm/llvm-project/pull/184122