Revert "ci: auto-cancel previous workflows when a new commit is pushed (#10962)"

Unfortunately #10962 made PR runs, cancel runs on commits pushed
to master too, leading to false positives for failed CI runs :-| .

See https://github.com/vlang/v/commits/master?after=db5e0f21171c05fff3492754eb7aa09b8783c3f1+0&branch=master

This reverts commit 6d6b08ba2a.

.github/workflows/cancel.yml

@@ -1,15 +0,0 @@
-name: Cancel previous workflows
-
-on:
-  workflow_run:
-    workflows: ["Code CI", "Sanitized CI"] # the other workflows finish quickly - no need to skip them for now
-    types:
-      - requested
-
-jobs:
-  cancel-previous-workflows:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: styfle/cancel-workflow-action@0.9.0
-      with:
-        workflow_id: ${{ github.event.workflow.id }}

.github/workflows/ci.yml

@@ -9,14 +9,7 @@ on:
       - "**.md"
 
 jobs:
-  no-scheduling:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Dont schedule all jobs
-        run: sleep 10
-
   code-formatting-perf-regressions:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 15
     env:
@@ -47,7 +40,6 @@ jobs:
         run: cmd/tools/repeat --max_time 1201 --series 3 --count 20 --nmins 2 --nmaxs 5 --warmup 3 --fail_percent 10 -t 'cd {T} ; ./v -show-timings -o v.c cmd/v' . ./vmaster
 
   ubuntu-tcc:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 60
     env:
@@ -114,7 +106,6 @@ jobs:
         run: cd cmd/tools/fast && ../../../v fast.v && ./fast
 
   ubuntu-tcc-boehm-gc:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 60
     env:
@@ -169,7 +160,6 @@ jobs:
           [ "$(stat -c %s leaks.txt)" = "0" ]
 
   misc-tooling:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 60
     env:
@@ -240,7 +230,6 @@ jobs:
 
 
   alpine-docker-musl-gcc:
-    needs: no-scheduling
     name: alpine-musl
     runs-on: ubuntu-20.04
     timeout-minutes: 60
@@ -270,7 +259,6 @@ jobs:
           ./v -silent test-self
 
   macos:
-    needs: no-scheduling
     runs-on: macOS-latest
     timeout-minutes: 60
     env:
@@ -359,7 +347,6 @@ jobs:
           ../v run examples/build_examples.vsh
 
   ubuntu:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 60
     steps:
@@ -455,7 +442,6 @@ jobs:
   #        github-token: ${{ secrets.GITHUB_TOKEN }}
 
   ubuntu-clang:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 60
     env:
@@ -551,7 +537,6 @@ jobs:
 
   # Ubuntu docker pre-built container
   ubuntu-musl:
-    needs: no-scheduling
     name: ubuntu-musl
     runs-on: ubuntu-20.04
     timeout-minutes: 60
@@ -604,7 +589,6 @@ jobs:
   #       run: ./v -silent test-self
 
   windows-gcc:
-    needs: no-scheduling
     runs-on: windows-2019
     timeout-minutes: 60
     env:
@@ -647,7 +631,6 @@ jobs:
         run: .\v.exe -o v2.exe cmd/v && .\v2.exe -o v3.exe cmd/v
 
   windows-msvc:
-    needs: no-scheduling
     runs-on: windows-2019
     timeout-minutes: 60
     env:
@@ -691,7 +674,6 @@ jobs:
         run: .\v.exe -o v2.exe cmd/v && .\v2.exe -o v3.exe cmd/v
 
   windows-tcc:
-    needs: no-scheduling
     runs-on: windows-2019
     timeout-minutes: 60
     env:
@@ -779,7 +761,6 @@ jobs:
         run: .\v.exe -o v2.exe cmd/v && .\v2.exe -o v3.exe cmd/v
 
   parser-silent:
-    needs: no-scheduling
     name: Parser silent mode
     runs-on: ubuntu-20.04
     timeout-minutes: 60
@@ -819,7 +800,6 @@ jobs:
           ./v test-parser -S examples/2048/2048_fuzz.v
 
   v-apps-compile:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 60
     steps:

.github/workflows/ci_sanitized.yml

@@ -9,14 +9,7 @@ on:
       - "**.md"
 
 jobs:
-  no-scheduling:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Dont schedule all jobs
-        run: sleep 10
-
   tests-sanitize-undefined-clang:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 120
     env:
@@ -42,7 +35,6 @@ jobs:
         run: ./v2 build-examples
 
   tests-sanitize-undefined-gcc:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 120
     env:
@@ -67,7 +59,6 @@ jobs:
         run: ./v2 build-examples
 
   tests-sanitize-address-clang:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 120
     env:
@@ -97,7 +88,6 @@ jobs:
         run: ASAN_OPTIONS=detect_leaks=0 ./v build-examples
 
   tests-sanitize-address-msvc:
-    needs: no-scheduling
     runs-on: windows-2019
     timeout-minutes: 120
     env:
@@ -124,7 +114,6 @@ jobs:
           .\v.exe -cflags -fsanitize=address test-self
 
   tests-sanitize-address-gcc:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 120
     env:
@@ -154,7 +143,6 @@ jobs:
         run: ASAN_OPTIONS=detect_leaks=0 ./v build-examples
 
   tests-sanitize-memory-clang:
-    needs: no-scheduling
     runs-on: ubuntu-20.04
     timeout-minutes: 120
     env: