Revert "[CGObjC] Add run line for release mode in test arc-exceptions-seh.mm (NFC)"

This reverts commit 01023bf. The extended test now triggers undefined behavior:
```
/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp:577:41: runtime error: load of value 180, which is not a valid value for type 'bool'
    #0 0xaaaae3333a30 in hasCFGChanged /b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp:577:41
    #1 0xaaaae3333a30 in llvm::ObjCARCOptPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) /b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/lib/Transforms/ObjCARC/ObjCARCOpts.cpp:2494:26
    ...
```

Author: weliveindetail

clang/test/CodeGenObjCXX/arc-exceptions-seh.mm

@@ -1,5 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -emit-llvm -fobjc-arc -fexceptions -fobjc-exceptions -fobjc-arc-exceptions -fobjc-runtime=gnustep-2.0 -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-O0
-// RUN: %clang_cc1 -O2 -triple x86_64-pc-windows-msvc -emit-llvm -fobjc-arc -fexceptions -fobjc-exceptions -fobjc-arc-exceptions -fobjc-runtime=gnustep-2.0 -mllvm -enable-objc-arc-opts=false -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-O2
+// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -emit-llvm -fobjc-arc -fexceptions -fobjc-exceptions -fobjc-arc-exceptions -fobjc-runtime=gnustep-2.0 -o - %s | FileCheck %s
 
 // WinEH requires funclet tokens on nounwind intrinsics if they can lower to
 // regular function calls in the course of IR transformations.
@@ -41,29 +40,25 @@ void try_catch_with_objc_intrinsic() {
 // CHECK:             [ "funclet"(token [[CATCHPAD]]) ]
 // CHECK:             unwind label %[[CLEANUP2]]
 // CHECK:           call
-// CHECK-O0:          @llvm.objc.storeStrong
-// CHECK-O2:          @llvm.objc.release
+// CHECK:             @llvm.objc.storeStrong
 // CHECK:             [ "funclet"(token [[CATCHPAD]]) ]
-// CHECK-O0:        catchret from [[CATCHPAD]] to label %catchret.dest
-// CHECK-O2:        catchret from [[CATCHPAD]] to label %eh.cont
+// CHECK:           catchret from [[CATCHPAD]] to label %catchret.dest
 //
-// In debug mode, this block exists and it's empty:
-// CHECK-O0:      catchret.dest:
-// CHECK-O0-NEXT:   br label %eh.cont
+// This block exists and it's empty:
+// CHECK:         catchret.dest:
+// CHECK-NEXT:      br label %eh.cont
 //
 // CHECK:         [[CLEANUP2]]:
 // CHECK-NEXT:      [[CLEANUPPAD2:%[0-9]+]] = cleanuppad within [[CATCHPAD]]
 // CHECK:           call
-// CHECK-O0:          @llvm.objc.storeStrong
-// CHECK-O2:          @llvm.objc.release
+// CHECK:             @llvm.objc.storeStrong
 // CHECK:             [ "funclet"(token [[CLEANUPPAD2]]) ]
 // CHECK:           cleanupret from [[CLEANUPPAD2]]
 // CHECK:             unwind label %[[CLEANUP1]]
 //
 // CHECK:         [[CLEANUP1]]:
 // CHECK-NEXT:      [[CLEANUPPAD1:%[0-9]+]] = cleanuppad within none
 // CHECK:           call
-// CHECK-O0:          @llvm.objc.storeStrong
-// CHECK-O2:          @llvm.objc.release
+// CHECK:             @llvm.objc.storeStrong
 // CHECK:             [ "funclet"(token [[CLEANUPPAD1]]) ]
 // CHECK:           cleanupret from [[CLEANUPPAD1]] unwind to caller