Remove IgnoreEarlyBootEnded()

Now that FDE is no longer supported, this is no longer needed.

Bug: 191796797
Change-Id: I71fd98e66fd0998b78b8d56507cc62e1a112263a
diff --git a/VoldNativeService.cpp b/VoldNativeService.cpp
index 415e48d..8c9cc16 100644
--- a/VoldNativeService.cpp
+++ b/VoldNativeService.cpp
@@ -26,7 +26,6 @@
 #include <utils/Trace.h>
 
 #include <stdio.h>
-#include <sys/vfs.h>
 #include <fstream>
 #include <thread>
 
@@ -912,42 +911,10 @@
     incfs::features();
 }
 
-// This is missing from the kernel UAPI headers.
-#define ST_RDONLY 0x0001
-
-// FDE devices run the post-fs-data trigger (and hence also earlyBootEnded)
-// multiple times, sometimes prior to the real /data being mounted.  That causes
-// keystore2 to try to open a file in /data, causing it to panic or have to be
-// killed by vold later, causing problems (vold failing to connect to keystore2,
-// or keystore2 operations erroring out later).  As a workaround to keep FDE
-// working, ignore these too-early calls to earlyBootEnded.
-//
-// This can be removed when support for FDE is removed.
-static bool IgnoreEarlyBootEnded() {
-    // The statfs("/data") below should be sufficient by itself, but to be safe
-    // we also explicitly return false on FBE devices.  (This really should be
-    // ro.crypto.type != "block" for "non-FDE devices", but on FDE devices this
-    // is sometimes called before ro.crypto.type gets set.)
-    if (fscrypt_is_native()) return false;
-
-    struct statfs buf;
-    if (statfs(DATA_MNT_POINT, &buf) != 0) {
-        PLOG(ERROR) << "statfs(\"/data\") failed";
-        return false;
-    }
-    if (buf.f_type == TMPFS_MAGIC || (buf.f_flags & ST_RDONLY)) {
-        LOG(INFO) << "Ignoring earlyBootEnded since real /data isn't mounted yet";
-        return true;
-    }
-    return false;
-}
-
 binder::Status VoldNativeService::earlyBootEnded() {
     ENFORCE_SYSTEM_OR_ROOT;
     ACQUIRE_LOCK;
 
-    if (IgnoreEarlyBootEnded()) return Ok();
-
     initializeIncFs();
     Keystore::earlyBootEnded();
     return Ok();