Remove binary data from two .in files.

Wrap the binary blobs in bug_71.in and bug_453723.in to in ASCIIHex
encoding, so they can have LF line endings.

Bug: pdfium:1302
Change-Id: I7541ad069cb2a3b1bad70ddc732e0f554f9df824
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/60574
Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/testing/resources/pixel/bug_453723.in b/testing/resources/pixel/bug_453723.in
index ed0a712..ba3219d 100644
--- a/testing/resources/pixel/bug_453723.in
+++ b/testing/resources/pixel/bug_453723.in
Binary files differ
diff --git a/testing/resources/pixel/bug_71.in b/testing/resources/pixel/bug_71.in
index 6bb6f19..974c6b9 100644
--- a/testing/resources/pixel/bug_71.in
+++ b/testing/resources/pixel/bug_71.in
Binary files differ