[llvm] [AMDGPU] Remove "using namespace" from a header. NFC. (PR #154776)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Jay Foad (jayfoad)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/154776.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h (-2) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h b/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h
index 5ddf1ca2ab06d..47b718983d17f 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h
@@ -24,8 +24,6 @@ class AsmPrinter;
 class MCContext;
 } // namespace llvm
 
-using namespace llvm;
-
 class AMDGPUMCInstLower {
   MCContext &Ctx;
   const TargetSubtargetInfo &ST;

``````````

</details>


https://github.com/llvm/llvm-project/pull/154776