ci: remove llvm-17 variant of the workflow

Also try prettifying the job names.

Signed-off-by: Ihor Solodrai <ihor.solodrai@pm.me>

.github/workflows/test.yml

@@ -21,17 +21,12 @@ jobs:
             arch: 'x86_64'
             llvm-version: '18'
             pahole: 'master'
-          - kernel: 'LATEST'
-            runs_on: 'ubuntu-24.04'
-            arch: 'x86_64'
-            llvm-version: '17'
-            pahole: 'master'
           - kernel: 'LATEST'
             runs_on: 'ubuntu-24.04'
             arch: 'x86_64'
             llvm-version: '18'
             pahole: 'tmp.master'
-    name: ${{ matrix.kernel }} kernel llvm-${{ matrix.llvm-version }} pahole@${{ matrix.pahole }}
+    name: Linux ${{ matrix.kernel }} llvm-${{ matrix.llvm-version }}
     uses: ./.github/workflows/vmtest.yml
     with:
       runs_on: ${{ matrix.runs_on }}

.github/workflows/vmtest.yml

@@ -29,7 +29,7 @@ on:
         type: string
 jobs:
   vmtest:
-    name: llvm-${{ inputs.llvm-version }} pahole@${{ inputs.pahole }} linux-${{ inputs.kernel }}
+    name: pahole@${{ inputs.pahole }}
     runs-on: ${{ inputs.runs_on }}
     steps: