Revert "feat(optimizer): create optimizer dag and use it"

This reverts commit 0b99f6d278.

compiler/lib/Dialect/FHE/Analysis/utils.cpp

@@ -1,51 +0,0 @@
-// Part of the Concrete Compiler Project, under the BSD3 License with Zama
-// Exceptions. See
-// https://github.com/zama-ai/concrete-compiler-internal/blob/main/LICENSE.txt
-// for license information.
-
-#include "concretelang/Dialect/FHE/IR/FHETypes.h"
-#include <concretelang/Dialect/FHE/Analysis/utils.h>
-
-namespace mlir {
-namespace concretelang {
-namespace fhe {
-namespace utils {
-/// Returns `true` if the given value is a scalar or tensor argument of
-/// a function, for which a MANP of 1 can be assumed.
-bool isEncryptedValue(mlir::Value value) {
-  return (
-      value.getType().isa<mlir::concretelang::FHE::EncryptedIntegerType>() ||
-      (value.getType().isa<mlir::TensorType>() &&
-       value.getType()
-           .cast<mlir::TensorType>()
-           .getElementType()
-           .isa<mlir::concretelang::FHE::EncryptedIntegerType>()));
-}
-
-/// Returns the bit width of `value` if `value` is an encrypted integer
-/// or the bit width of the elements if `value` is a tensor of
-/// encrypted integers.
-unsigned int getEintPrecision(mlir::Value value) {
-  if (auto ty = value.getType()
-                    .dyn_cast_or_null<
-                        mlir::concretelang::FHE::EncryptedIntegerType>()) {
-    return ty.getWidth();
-  } else if (auto tensorTy =
-                 value.getType().dyn_cast_or_null<mlir::TensorType>()) {
-    if (auto ty = tensorTy.getElementType()
-                      .dyn_cast_or_null<
-                          mlir::concretelang::FHE::EncryptedIntegerType>())
-      return ty.getWidth();
-  }
-
-  assert(false &&
-         "Value is neither an encrypted integer nor a tensor of encrypted "
-         "integers");
-
-  return 0;
-}
-
-} // namespace utils
-} // namespace fhe
-} // namespace concretelang
-} // namespace mlir