ext4: Simplify flags in ext4_map_query_blocks()

ext4: Simplify flags in ext4_map_query_blocks()

Now that we have EXT4_EX_QUERY_FILTER mask, let's use that to simplify
the filtering of flags for passing to ext4_ext_map_blocks() in
ext4_map_query_blocks() function. This allows us to kill the query_flags
local variable which is not needed anymore.

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Link: https://patch.msgid.link/4ae735e83e6f43341e53e2d289e59156a8360134.1747677758.git.ritesh.list@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>