Revert "Merge pull request #17637 from jacobly0/x86_64-test-std"

This reverts commit 0c99ba1eab63865592bb084feb271cd4e4b0357e, reversing
changes made to 5f92b070bf284f1493b1b5d433dd3adde2f46727.

This caused a CI failure when it landed in master branch due to a
128-bit `@byteSwap` in std.mem.

1 files changed, 0 insertions, 4 deletions

diff --git a/lib/std/leb128.zig b/lib/std/leb128.zig
index 7cfbec0b97..f6e9b9ea60 100644
--- a/lib/std/leb128.zig
+++ b/lib/std/leb128.zig
@@ -215,8 +215,6 @@ fn test_read_uleb128_seq(comptime T: type, comptime N: usize, encoded: []const u
 }
 
 test "deserialize signed LEB128" {
-    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
-
     // Truncated
     try testing.expectError(error.EndOfStream, test_read_stream_ileb128(i64, "\x80"));
 
@@ -363,8 +361,6 @@ test "serialize unsigned LEB128" {
 }
 
 test "serialize signed LEB128" {
-    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
-
     // explicitly test i0 because starting `t` at 0
     // will break the while loop
     try test_write_leb128(@as(i0, 0));