[docs] Turn of `nasm` highlighting for a code block.
This appears to produce a warning on the docs build bot. It doesn't
reproduce for me, likely because I have a newer (or more full featured)
pygments install.
llvm-svn: 338978
diff --git a/llvm/docs/AMDGPUUsage.rst b/llvm/docs/AMDGPUUsage.rst
index 1515983..1ddda1b 100644
--- a/llvm/docs/AMDGPUUsage.rst
+++ b/llvm/docs/AMDGPUUsage.rst
@@ -4573,7 +4573,7 @@
Here is an example of a minimal assembly source file, defining one HSA kernel:
-.. code-block:: nasm
+.. code-block:: none
.amdgcn_target "amdgcn-amd-amdhsa--gfx900+xnack" // optional