tests: Drop redundant collate test data files

These were made redundant in 5b08ef84e4
and cddce179f5,
when the test data was moved into the test program as strings.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

tests/collate/collate-1.file

@@ -1,9 +0,0 @@
-223
-bar
-baz
-c
-eer34
-er1
-foo
-GTK+
-z

tests/collate/collate-1.in

@@ -1,9 +0,0 @@
-z
-c
-eer34
-223
-er1
-foo
-bar
-baz
-GTK+

tests/collate/collate-1.unicode

@@ -1,9 +0,0 @@
-223
-bar
-baz
-c
-eer34
-er1
-foo
-GTK+
-z

tests/collate/collate-2.file

@@ -1,13 +0,0 @@
-bla001
-bla02
-bla03
-bla4
-bla10
-bla100
-event.c
-event.h
-eventgenerator.c
-file.c
-file.txt
-file2.bla
-file3.xx

tests/collate/collate-2.in

@@ -1,13 +0,0 @@
-file.txt
-file2.bla
-file.c
-file3.xx
-bla001
-bla02
-bla03
-bla4
-bla10
-bla100
-event.c
-eventgenerator.c
-event.h

tests/collate/collate-2.unicode

@@ -1,13 +0,0 @@
-bla001
-bla02
-bla03
-bla10
-bla100
-bla4
-event.c
-eventgenerator.c
-event.h
-file2.bla
-file3.xx
-file.c
-file.txt