With
https://chromium-review.googlesource.com/213300
b9b5c105

the file intermediate.h was renamed Intermediate.h. However,
compiler.gypi now contains references to both, but the lower case
version doesn't exist anymore, so it should be removed.

Change-Id: I6b36bd561f110694daecd4ad911036c94300cd1f
Reviewed-on: https://chromium-review.googlesource.com/273593Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>