[llvm] Revert "[bazel] Port #95942" (PR #96340)

[Keith Smiley via llvm-commits]

https://github.com/keith created https://github.com/llvm/llvm-project/pull/96340

Original change was reverted

Reverts llvm/llvm-project#96334

>From c1692a7a615edeaba690fe62b8335ae8229e5695 Mon Sep 17 00:00:00 2001
From: Keith Smiley <keithbsmiley at gmail.com>
Date: Fri, 21 Jun 2024 11:04:12 -0700
Subject: [PATCH] Revert "[bazel] Port #95942 (#96334)"

This reverts commit 1eddf3519f2e692d60a43204d862ea00a92f48f4.
---
 .../llvm-project-overlay/mlir/BUILD.bazel     | 28 -------------------
 1 file changed, 28 deletions(-)

diff --git a/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
index 14203eb9e7060..d8369853e22f8 100644
--- a/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
@@ -824,7 +824,6 @@ mlir_c_api_cc_library(
     includes = ["include"],
     deps = [
         ":ConversionPasses",
-        ":ConvertToSPIRV",
         ":Pass",
     ],
 )
@@ -4201,7 +4200,6 @@ cc_library(
         ":ControlFlowToSPIRV",
         ":ConversionPassIncGen",
         ":ConvertToLLVM",
-        ":ConvertToSPIRV",
         ":FuncToEmitC",
         ":FuncToLLVM",
         ":FuncToSPIRV",
@@ -8211,32 +8209,6 @@ cc_library(
     ],
 )
 
-cc_library(
-    name = "ConvertToSPIRV",
-    srcs = ["lib/Conversion/ConvertToSPIRV/ConvertToSPIRVPass.cpp"],
-    hdrs = ["include/mlir/Conversion/ConvertToSPIRV/ConvertToSPIRVPass.h"],
-    includes = ["include"],
-    deps = [
-        ":ArithToSPIRV",
-        ":ArithTransforms",
-        ":ConversionPassIncGen",
-        ":FuncToSPIRV",
-        ":IR",
-        ":IndexToSPIRV",
-        ":Pass",
-        ":Rewrite",
-        ":SCFToSPIRV",
-        ":SPIRVConversion",
-        ":SPIRVDialect",
-        ":SPIRVTransforms",
-        ":TransformUtils",
-        ":Transforms",
-        ":UBToSPIRV",
-        ":VectorToSPIRV",
-        ":VectorTransforms",
-    ],
-)
-
 cc_library(
     name = "ControlFlowToSCF",
     srcs = [