fix(get_app_config.go,publish_release.go): remove unused imports

Author: arschles

pkg/gitreceive/get_app_config.go

@@ -3,10 +3,6 @@ package gitreceive
 import (
 	"bytes"
 	"encoding/json"
-	"errors"
-	"flag"
-	"fmt"
-	"io/ioutil"
 	"net/http"
 	"os"
 

pkg/gitreceive/publish_release.go

@@ -3,13 +3,8 @@ package gitreceive
 import (
 	"encoding/json"
 	"flag"
-	"fmt"
-	"io/ioutil"
 	"log"
 	"net/http"
-	"os"
-	"regexp"
-	"strings"
 
 	"github.com/deis/builder/pkg"
 )