Remove top-level (src/) Makefile.

R=rsc, dho, r
CC=golang-dev
https://golang.org/cl/194045
diff --git a/doc/install.html b/doc/install.html
index 0d7b185..33dacf2 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -208,11 +208,11 @@
 
 <pre>
 $ cd $GOROOT/src
-$ make all
+$ ./all.bash
 </pre>
 
 <p>
-If <code>make all</code> goes well, it will finish by printing
+If all goes well, it will finish by printing
 </p>
 
 <pre>