Remove tools/tests.

tools/tests/skdiff/identical-bits/output-expected/stdout

Index: tools/tests/skdiff/identical-bits/output-expected/stdout
diff --git a/tools/tests/skdiff/identical-bits/output-expected/stdout b/tools/tests/skdiff/identical-bits/output-expected/stdout
deleted file mode 100644
index d05c1cc709168ec2633c396bb90273bbafdd2092..0000000000000000000000000000000000000000
--- a/tools/tests/skdiff/identical-bits/output-expected/stdout
+++ /dev/null
@@ -1,14 +0,0 @@
-baseDir is [tools/tests/skdiff/baseDir/]
-comparisonDir is [tools/tests/skdiff/comparisonDir/]
-not writing any diffs to outputDir [tools/tests/skdiff/identical-bits/output-actual/]
-
-compared 2 file pairs:
-[_] 2 file pairs contain exactly the same bits
-[_] 0 file pairs contain the same pixel values, but not the same bits
-[_] 0 file pairs have identical dimensions but some differing pixels
-[_] 0 file pairs have differing dimensions
-[_] 0 file pairs could not be compared
-[_] 0 file pairs not compared yet
-(results marked with [*] will cause nonzero return value)
-
-number of mismatching file pairs: 0