Remove CI checkout steps where not-required

Author: molinav

.github/workflows/basemap-data-hires.yml

@@ -89,9 +89,6 @@ jobs:
     container: "pylegacy/python:${{ matrix.python-version }}-debian-5"
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1

.github/workflows/basemap-data.yml

@@ -89,9 +89,6 @@ jobs:
     container: "pylegacy/python:${{ matrix.python-version }}-debian-5"
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1

.github/workflows/basemap-for-manylinux.yml

@@ -155,9 +155,6 @@ jobs:
     runs-on: ubuntu-latest
     container: "pylegacy/${{ matrix.arch }}-python:3.6-debian-5"
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download GEOS artifacts
         uses: actions/download-artifact@v1
@@ -285,9 +282,6 @@ jobs:
     container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-5"
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Download build artifacts
         uses: actions/download-artifact@v1

.github/workflows/basemap-for-windows.yml

@@ -225,9 +225,6 @@ jobs:
     runs-on: windows-latest
     environment: PyPI
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
       -
         name: Set Python
         uses: actions/setup-python@v2