DRIVERS-2543 Fix source branch for drivers-tools (mongodb#1420)

Author: blink1073

.evergreen/config.yml

@@ -27,7 +27,7 @@ timeout:
 
 functions:
   "fetch source":
-    # Executes git clone and applies the submitted patch, if any
+    # Executes clone and applies the submitted patch, if any
     - command: git.get_project
       params:
         directory: "src"
@@ -98,7 +98,7 @@ functions:
             # If this was a patch build, doing a fresh clone would not actually test the patch
             cp -R ${PROJECT_DIRECTORY}/ $DRIVERS_TOOLS
           else
-            git clone --branch DRIVERS-2543 https://github.com/blink1073/drivers-evergreen-tools.git $DRIVERS_TOOLS
+            git clone https://github.com/mongodb-labs/drivers-evergreen-tools.git $DRIVERS_TOOLS
           fi
           echo "{ \"releases\": { \"default\": \"$MONGODB_BINARIES\" }}" > $MONGO_ORCHESTRATION_HOME/orchestration.config