ci: Remove the build of openeuler-cann in release

[xuedinge233]

• Due to the large size of the openeuler-cann image, the image initialization failed, affecting the operation of the release workflow. The modification is temporarily rolled back

Make sure to read the contributing guidelines before submitting a PR

[taronaeo]

-            **openEuler:**
-            - [openEuler x86 (310p)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-310p-openEuler-x86.tar.gz)
-            - [openEuler x86 (910b)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-910b-openEuler-x86.tar.gz)
-            - [openEuler aarch64 (310p)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-310p-openEuler-aarch64.tar.gz)
-            - [openEuler aarch64 (910b)](https://github.com/ggml-org/llama.cpp/releases/download/${{ steps.tag.outputs.name }}/llama-${{ steps.tag.outputs.name }}-bin-910b-openEuler-aarch64.tar.gz)

Remove these hyperlinks from the release information as well.

[taronaeo]

Wait for @CISC's review.

[CISC]

Ironically it succeeded on a later push, but we can't have unstable releases, hope this can be resolved soon.

[xuedinge233]

Ironically it succeeded on a later push, but we can't have unstable releases, hope this can be resolved soon.

Yes, it doesn't seem stable at present. I will fix this problem as soon as possible.