Remove an unused patch/source file.

patch-testsuite-epsilon

@@ -1,13 +0,0 @@
-diff --git a/xs/t/03_point.t b/xs/t/03_point.t
-index cb71f68..0cc58e1 100644
---- a/xs/t/03_point.t
-+++ b/xs/t/03_point.t
-@@ -44,7 +44,7 @@ ok !$point->coincides_with($point2), 'coincides_with';
- 
- {
-     my $line = Slic3r::Line->new([50,50], [125,-25]);
--    is +Slic3r::Point->new(100,0)->distance_to_line($line),  0, 'distance_to_line()';
-+    cmp_ok(abs(Slic3r::Point->new(100,0)->distance_to_line($line)), '<=',  4e-15, 'distance_to_line()');
- }
- 
- {

prusa-slicer.spec

@@ -20,13 +20,6 @@ Source0:        https://github.com/prusa3d/PrusaSlicer/archive/version_2.1.0-rc.
 Source1:        %name.desktop
 Source2:        %name.appdata.xml
 
-# A single test suite fails, but only on aarch64 and s390x, due to floating
-# point rouding issues.   This patch adds small epsilon (4e-15) to one
-# comparison to work around this.
-# We will conditionally apply this so it's a source file, not a patch.
-# https://github.com/prusa3d/PrusaSlicer/issues/2461
-Source10:       patch-testsuite-epsilon
-
 BuildRequires:  boost-devel
 BuildRequires:  cmake
 BuildRequires:  cereal-devel