Revert "Make parallel-moves resolver available publicly (#156)"

This reverts commit 69dba4a.

fuzz/fuzz_targets/moves.rs

@@ -6,7 +6,7 @@
 #![no_main]
 use regalloc2::fuzzing::arbitrary::{Arbitrary, Result, Unstructured};
 use regalloc2::fuzzing::fuzz_target;
-use regalloc2::moves::{MoveAndScratchResolver, ParallelMoves};
+use regalloc2::fuzzing::moves::{MoveAndScratchResolver, ParallelMoves};
 use regalloc2::{Allocation, PReg, RegClass, SpillSlot};
 use std::collections::{HashMap, HashSet};
 

src/fuzzing/mod.rs

@@ -15,6 +15,9 @@ pub mod domtree {
 pub mod postorder {
     pub use crate::postorder::*;
 }
+pub mod moves {
+    pub use crate::moves::*;
+}
 pub mod cfg {
     pub use crate::cfg::*;
 }

src/lib.rs

@@ -43,7 +43,7 @@ pub(crate) mod cfg;
 pub(crate) mod domtree;
 pub mod indexset;
 pub(crate) mod ion;
-pub mod moves;
+pub(crate) mod moves;
 pub(crate) mod postorder;
 pub mod ssa;