Remove cron-scheduled workflow

.github/workflows/main.yml

@@ -3,16 +3,14 @@ name: Main
 on:
   pull_request:
   push:
-  schedule:
-  - cron: 30 12 * * *
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2
-    
+
     - name: Install stable toolchain
       uses: actions-rs/toolchain@v1
       with:
@@ -27,7 +25,7 @@ jobs:
       uses: actions-rs/cargo@v1
       with:
         command: build
-        
+
     - name: cargo test
       uses: actions-rs/cargo@v1
       with: