tests: Remove "suppression of fixups" tests

I think these were for an additional command line option which got dropped
during development.  At this point all they're testing is that fixups don't
get generated for a non /plugin/ tree, which is already tested with one of
the simpler cases previously.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

tests/overlay_base_fixups.dts

@@ -1,22 +0,0 @@
-/*
- * Copyright (c) 2016 Konsulko Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/dts-v1/;
-
-/ {
-	test: test-node {
-		test-int-property = <42>;
-		test-str-property = "foo";
-
-		subtest: sub-test-node {
-			sub-test-property;
-		};
-	};
-
-	ref {
-		local-ref = <&test &subtest>;
-	};
-};

tests/run_tests.sh

@@ -231,12 +231,6 @@ dtc_overlay_tests () {
     run_test check_path overlay_overlay_with_symbols_auto.test.dtb exists "/__fixups__"
     run_test check_path overlay_overlay_with_symbols_auto.test.dtb exists "/__local_fixups__"
 
-    # Test suppression of fixups
-    run_dtc_test -@ -I dts -O dtb -o overlay_base_with_symbols_no_fixups.test.dtb overlay_base_fixups.dts
-    run_test check_path overlay_base_with_symbols_no_fixups.test.dtb exists "/__symbols__"
-    run_test check_path overlay_base_with_symbols_no_fixups.test.dtb not-exists "/__fixups__"
-    run_test check_path overlay_base_with_symbols_no_fixups.test.dtb not-exists "/__local_fixups__"
-
     # Test generation of aliases insted of symbols
     run_dtc_test -A -I dts -O dtb -o overlay_base_with_aliases.dtb overlay_base.dts
     run_test check_path overlay_base_with_aliases.dtb exists "/aliases"