travis: Drop -MD related workaround for sparse.
The issue was fixed in upstream sparse by the following commit:
("cgcc: fix wrong processing of -MD & -MMD")
This patch is required to fix our travis build.
Acked-by: Ian Stokes
@@ -9,11 +9,6 @@ set -ev
# linking against it fails.
git clone git://git.kernel.org/pub/scm/devel/sparse/sparse.git
cd sparse
-# Commit bb1bf748580d ("cgcc: gendeps for -MM, -MD & -MMD too") makes
-# sparse ignore almost all source files, because 'make' uses '-MD' to
-# generate dependencies as a side effect within compilation commands.
-git revert bb1bf748580d --no-commit
-git diff HEAD
make -j4 HAVE_LLVM= install
cd ..
