Remove code coverage report

Author: krasun

.github/workflows/build.yml

@@ -21,11 +21,4 @@ jobs:
       run: go build -v .
 
     - name: Test
-      run: go test -v . -race -cover -coverprofile=coverage.txt
-
-    - name: Upload coverage report
-      uses: codecov/codecov-action@v2
-      with:
-        file: ./coverage.txt
-        fail_ci_if_error: true
-        verbose: true
+      run: go test -v . -race -cover 

README.md

@@ -1,7 +1,6 @@
 # gosqlparser
 
 [![Build](https://github.com/krasun/gosqlparser/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/krasun/gosqlparser/actions/workflows/build.yml)
-[![codecov](https://codecov.io/gh/krasun/gosqlparser/branch/main/graph/badge.svg?token=8NU6LR4FQD)](https://codecov.io/gh/krasun/gosqlparser)
 [![Go Report Card](https://goreportcard.com/badge/github.com/krasun/gosqlparser)](https://goreportcard.com/report/github.com/krasun/gosqlparser)
 [![GoDoc](https://godoc.org/https://godoc.org/github.com/krasun/gosqlparser?status.svg)](https://godoc.org/github.com/krasun/gosqlparser)