Remove lss dependency

This was needed by PartitionAlloc, but PA removed this dependency in
https://crrev.com/1170340 recently.

Change-Id: I3c78e0ffd6e9ea39cadfeef8a9d3c6dc2272b7e9
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/110230
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/.gitignore b/.gitignore
index 2f512c4..cbf56f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,7 +23,6 @@
 /third_party/libpng
 /third_party/llvm
 /third_party/llvm-build
-/third_party/lss
 /third_party/markupsafe
 /third_party/nasm
 /third_party/ninja/ninja*
diff --git a/DEPS b/DEPS
index 9712aa3..7c23ae6 100644
--- a/DEPS
+++ b/DEPS
@@ -138,10 +138,6 @@
   # and whatever else without interference from each other.
   'libunwind_revision': 'f1c687e0aaf0d70b9a53a150e9be5cb63af9215f',
   # Three lines of non-changing comments so that
-  # the commit queue can handle CLs rolling lss
-  # and whatever else without interference from each other.
-  'lss_revision': 'ce877209e11aa69dcfffbd53ef90ea1d07136521',
-  # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling markupsafe
   # and whatever else without interference from each other.
   'markupsafe_revision': '006709ba3ed87660a17bd4548c45663628f5ed85',
@@ -368,11 +364,6 @@
     Var('chromium_git') + '/chromium/src/third_party/libpng.git@' +
         Var('libpng_revision'),
 
-  'third_party/lss': {
-      'url': Var('chromium_git') + '/linux-syscall-support.git' + '@' + Var('lss_revision'),
-      'condition': 'checkout_android or checkout_linux',
-  },
-
   'third_party/markupsafe':
     Var('chromium_git') + '/chromium/src/third_party/markupsafe.git@' +
         Var('markupsafe_revision'),