[Unifomity] Remove unused PhiInput definition (NFC)

[perlfu]

This appears to have no users.
Putting this to review in case there is some use I am unaware of.

[llvmbot]

@llvm/pr-subscribers-llvm-adt

Author: Carl Ritson (perlfu)

Changes

This appears to have no users.
Putting this to review in case there is some use I am unaware of.

---

Full diff: https://github.com/llvm/llvm-project/pull/161116.diff

1 Files Affected:

• (modified) llvm/include/llvm/ADT/GenericUniformityImpl.h (-9)

diff --git a/llvm/include/llvm/ADT/GenericUniformityImpl.h b/llvm/include/llvm/ADT/GenericUniformityImpl.h
index 141816c304397..7fb0dbe22f12f 100644
--- a/llvm/include/llvm/ADT/GenericUniformityImpl.h
+++ b/llvm/include/llvm/ADT/GenericUniformityImpl.h
@@ -408,15 +408,6 @@ template <typename ContextT> class GenericUniformityAnalysisImpl {
                                 const CycleT *);
 
 protected:
-  /// \brief Value/block pair representing a single phi input.
-  struct PhiInput {
-    ConstValueRefT value;
-    BlockT *predBlock;
-
-    PhiInput(ConstValueRefT value, BlockT *predBlock)
-        : value(value), predBlock(predBlock) {}
-  };
-
   const ContextT &Context;
   const FunctionT &F;
   const CycleInfoT &CI;