Remove "build/" from autotools scripts path

[jmikola]

GitHub's file finder filters out "build/" directories, among others, which can make it difficult to quickly access these files. Also, the "build/" directory doesn't provide much value here, since it only contains "autotools/".

To quote an exchange I had with GitHub support:

I've noticed that the file finder (activated using T) has problems searching up certain files in repositories. The only connection I can make is that these files include "build" in their path (relative to the repository root).

• https://github.com/mongodb/mongo-php-driver/find/master cannot find files under the scripts/build/autotools directory, such as https://github.com/mongodb/mongo-php-driver/blob/master/scripts/build/autotools/CheckSSL.m4
• https://github.com/mongodb/libbson/find/master cannot find files under the build/autotools directory, such as https://github.com/mongodb/libbson/blob/master/build/autotools/FindDependencies.m4
• https://github.com/php/php-src/find/master cannot find files under win32/build, such as https://github.com/php/php-src/blob/master/win32/build/buildconf.js

Is this intentional?

Response:

Yes, we intentionally excludes files in certain paths, including build, for performance reasons.

[derickr]

LGTM