No more generated internal source

With this change, the only two remaining generated scripts are build/exports.js and build/test/requireall.js.  Both are only required by Plovr.  With the Node based build task, a temporary exports.js file is created.  The Node based server can be used to run the tests without build/test/requireall.js.

buildcfg/base.json

@@ -68,7 +68,6 @@
   ],
 
   "paths": [
-    "../build/src/internal/src",
     "../src"
   ],
 

buildcfg/ol-all.json

@@ -17,7 +17,6 @@
   "inherits": "base.json",
 
   "inputs": [
-    "../build/src/internal/src/requireall.js",
     "../build/exports.js"
   ]
 

buildcfg/ol-simple.json

@@ -27,7 +27,6 @@
   "inherits": "ol.json",
 
   "inputs": [
-    "../build/src/internal/src/requireall.js",
     "../build/exports.js"
   ],
 

buildcfg/ol-whitespace.json

@@ -28,7 +28,7 @@
   "inherits": "ol.json",
 
   "inputs": [
-    "../build/src/internal/src/requireall.js"
+    "../build/exports.js"
   ],
 
   "mode": "WHITESPACE",