chore: remove "environment" from release-please workflow (#955)

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: ascorbic

.github/workflows/pre-release.yml

@@ -7,7 +7,6 @@ on:
 jobs:
   prerelease:
     runs-on: ubuntu-latest
-    environment: production
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2

.github/workflows/release-please.yml

@@ -6,7 +6,6 @@ on:
 jobs:
   release-please:
     runs-on: ubuntu-latest
-    environment: production
     steps:
       - uses: navikt/github-app-token-generator@a9cd374e271b8aef573b8c16ac46c44fb89b02db
         id: get-token