[GML] Avoid calling isMemoryEffectFree on ops that have deleted operands#10

JamesMBartlett wants to merge 1 commit intogimlet_patches/20241118gimletlabs/llvm-project:gimlet_patches/20241118from

james/fix_rdv_passgimletlabs/llvm-project:james/fix_rdv_passCopy head branch name to clipboard