CI: remove unused check_skip steps

There is nothing in the repo that would refer to them

.github/workflows/aux_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/data_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/inference_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/style_check.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/text_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/tts_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/tts_tests2.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/vocoder_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/xtts_tests.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/zoo_tests0.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/zoo_tests1.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/zoo_tests2.yml

@@ -7,12 +7,6 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
-  check_skip:
-    runs-on: ubuntu-latest
-    if: "! contains(github.event.head_commit.message, '[ci skip]')"
-    steps:
-      - run: echo "${{ github.event.head_commit.message }}"
-
   test:
     runs-on: ubuntu-latest
     strategy: