Add temporary code to fix the automatic doc build failure.

Misc/build.sh

@@ -247,6 +247,10 @@ fi
 cd $DIR/Doc
 F="make-doc.out"
 start=`current_time`
+
+# Temporary measure to fix build problem
+rm -rf tools/sphinx/jinja
+
 # XXX(nnorwitz): For now, keep the code that checks for a conflicted file until
 # after the first release of 2.6a1 or 3.0a1.  At that point, it will be clear
 # if there will be a similar problem with the new doc system.