Remove useless mode bits

Looks like a rebase of I099808fd13bf9ed9a564b122f1126b1691a83291
accidentally wiped out part of
I5d9b98152e48135ea716592b28c5c771cc74018b.

This reapplies the part that was undone.

Bug: 64132680
Test: mma.
Change-Id: If213996103c3988e8a609c266a59a2791675fd0a
diff --git a/cmds/incidentd/src/Section.cpp b/cmds/incidentd/src/Section.cpp
index 8ef6817..37d5c6b 100644
--- a/cmds/incidentd/src/Section.cpp
+++ b/cmds/incidentd/src/Section.cpp
@@ -119,7 +119,7 @@
 status_t FileSection::Execute(ReportRequestSet* requests) const {
     // read from mFilename first, make sure the file is available
     // add O_CLOEXEC to make sure it is closed when exec incident helper
-    int fd = open(mFilename, O_RDONLY | O_CLOEXEC, 0444);
+    int fd = open(mFilename, O_RDONLY | O_CLOEXEC);
     if (fd == -1) {
        ALOGW("FileSection '%s' failed to open file", this->name.string());
        return -errno;