[SYCL][PM] Remove old PM checks

With legacy pass manager removal old PM checks introduced in #6074 are
not required anymore (and actually producing error due to unrecognized
option)

Author: Pavel V Chupin

clang/test/CodeGenSYCL/dead-elim-sycl.cpp

@@ -1,13 +1,9 @@
-// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -fno-legacy-pass-manager -fdebug-pass-manager -fenable-sycl-dae -o /dev/null -x c++ < %s 2>&1 | FileCheck %s
-// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O0 -fno-legacy-pass-manager -fdebug-pass-manager  -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix DISABLE
-// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -fno-legacy-pass-manager -fdebug-pass-manager -fenable-sycl-dae -disable-llvm-passes -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix DISABLE
-// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -flegacy-pass-manager -mllvm -debug-pass=Structure -fenable-sycl-dae -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix OLDPM
-// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -flegacy-pass-manager -mllvm -debug-pass=Structure -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix DISABLE
-// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -flegacy-pass-manager -mllvm -debug-pass=Structure -fenable-sycl-dae -disable-llvm-passes -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix DISABLE
-
 // Verify that Dead Arguments Elimination for SYCL kernels is/is not added to the PM.
 
+// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -fdebug-pass-manager -fenable-sycl-dae -o /dev/null -x c++ < %s 2>&1 | FileCheck %s
+// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O0 -fdebug-pass-manager  -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix DISABLE
+// RUN: %clang -cc1 -triple spir64-unknown-unknown  -fsycl-is-device  -emit-llvm-bc  -O1 -fdebug-pass-manager -fenable-sycl-dae -disable-llvm-passes -o /dev/null -x c++ < %s 2>&1 | FileCheck %s --check-prefix DISABLE
+
+
 // CHECK: Running pass: DeadArgumentEliminationSYCLPass on [module]
-// OLDPM: Dead Argument Elimination for SYCL kernels
 // DISABLE-NOT: DeadArgumentEliminationSYCLPass
-// DISABLE-NOT: Dead Argument Elimination for SYCL kernels