Undo test fixes (different on macOS / Linux)

This reverts commit 283b68b.

Author: nikmolnar

clients/tests/images_tests.py

@@ -255,14 +255,14 @@ def test_stack_images_vertically(self):
     b"\x00\x00IEND\xaeB`\x82"
 )
 TEST_STACKED_PNG = (
-    b"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAiElEQVR4nO2XQQrAMAgEVXxB/v+3/CBfsNiTSNpekkhh5xSyF8nKsuHeu1FgjEHMf"
-    b"J/NjFprtEt3hIqR6gF0dulP98ZKXd2TyMyznbrGhXiaPC7Val2oGP3ya/dO6GnPs66nPY+6U78DNAE5kEEOGHIggRww9IEE+oChDyTQBwz/gj/9C6"
-    b"R6gAsU7QuXQ0M9cAAAAABJRU5ErkJggg=="
+    b"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAiklEQVR4nO2UwQ3AMAgDL1UmyP67ZQNWoF+KqPopTVThp++"
+    b"DZOM251SMRITWGgCqyhiDLA5wsFjLD+iRqaqRncK7iFxglFkm77YQd5fbUr3N13fgKS/I7UT/OnPPwy/"
+    b"IzNxy2KEDkVk74FU7UDuQxWGHDkRm7YBX7UDtQBaHHToQmbUDXr/egeUHnBTtC5fqUmvZAAAAAElFTkSuQmCC"
 )
 TEST_TRANPARENT_PNG = (
-    b"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAjUlEQVR4nO2X0QnAIAxEE8kgrpD9h3AE3cRiv9Jg2x9tKNz7zCEE7wgJ11o7GXLOX"
-    b"Eo5a6rKrbVt+iBRMCm6AZkVx9c9PVqpc+8Xi2jm2U5dbCDuOrehWq0nCkbe/NqdCfnac6/L155bfRCfAZqAOeDBHFDMAQfmgGIfcGAfUOwDDuwDir"
-    b"vgT3dBim7gAJAlGLoqFiEVAAAAAElFTkSuQmCC"
+    b"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAkklEQVR4nO2UwQ0EIQwDJysKoYX0XwQlQCfsl0W5uw850Cp+eoQUycZSa+"
+    b"0MyjlLKaUDqKq01tw4wMVmbT8gWaaqyrdHK7n0/ogIKzNPnsZCfLp8LNVqvr8Dv/IC306kf2c+c/MXeGY+"
+    b"cjihA5YZOzArdiB2wIvDCR2wzNiBWbEDsQNeHE7ogGXGDsx69Q5sP+AGkCUYuteIHK0AAAAASUVORK5CYII="
 )
 TEST_JPG_BASE64 = (
     # Generated from test.jpg with quality and optimization unspecified
@@ -324,7 +324,8 @@ def test_stack_images_vertically(self):
     b"8APX/Wf7mdv55BzQAf8ev/AD1/1n+5nb+eQc0f8ev/AD1/1n+5nb+eQc0f8ev/AD1/1n+5nb+eQc1GGRYmCPMAZCpKnyzlfz45/SgD/9k="
 )
 TEST_OVERLAID_PNG_JPG = (
-    b"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAw0lEQVR4nO2X6w2FIAyF26YTsP9uTAAr1GDShIAXclWKUb4/Po40xVMroPdeICPGC"
-    b"Ii4n4sIOOeg1HPO6Bo/HQkapASOSAM1yBldn0nxmwn0glxBJ8ctsTf4Dp3v8PSKzvlrbnk+SieYDJdZaXVa1QSXnoQQTGuCRnzn/+gEk2H4eh8ga8"
-    b"9LCJ5QA2LoeZWAM/Z89YESru6sPnDA6gPylj6AiNV6gy3XgHqd/xcIJsPw9fUAP2JfgAZ7wF/sb2Ck573JbVge9t/la3LdAAAAAElFTkSuQmCC"
+    b"iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAxUlEQVR4nO1XURLEEBRLOu8E7n83J+AKb7/"
+    b"sWFWmVdYM+SPtm0ciA621igjee5AEAKgqjDFI+RhP+FCfJA4UoKrZeZLfIk/48I2qlhuoFWlBWJyUyNrPb/DyhqYtvMTbXNK8F1/"
+    b"0wAhI2lVwZ4yenpBUE+fcz7i3J7IStJ7zO/z/PZCbXCoHDmCs5inm8MBIzU8NjNZ850CKnQM7B9bKAZKn+"
+    b"0b2FPS6A4Zx7Ic5PJBiqRyY410w4g14Bcm9A+4WKfG1xX0AWB72305QlfQAAAAASUVORK5CYII="
 )