[elpa] externals/csharp-mode fa06dfa206: Use new setup-emacs action (#259)

[ELPA Syncer]

branch: externals/csharp-mode
commit fa06dfa206812476217ada6c4178de34ff1efc42
Author: Jen-Chieh Shen <jcs090218@gmail.com>
Commit: GitHub <noreply@github.com>

    Use new setup-emacs action (#259)
---
 .github/workflows/build.yml | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index aa714c7d02..0507cc3824 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,13 +21,7 @@ jobs:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can 
access it
       - uses: actions/checkout@v2
 
-      - uses: purcell/setup-emacs@master
-        if: matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest'
-        with:
-          version: ${{ matrix.emacs-version }}
-
-      - uses: jcs090218/setup-emacs-windows@master
-        if: matrix.os == 'windows-latest'
+      - uses: jcs090218/setup-emacs@master
         with:
           version: ${{ matrix.emacs-version }}