Remove extra slashes in fxjs/BUILD.gn.

Change-Id: I3abeff65896db960426e45a2a33aadcbe5e15c0e
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/51853
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/fxjs/BUILD.gn b/fxjs/BUILD.gn
index e53e940..ae3befc 100644
--- a/fxjs/BUILD.gn
+++ b/fxjs/BUILD.gn
@@ -253,7 +253,7 @@
         "xfa/cfxjse_value_embeddertest.cpp",
         "xfa/cjx_hostpseudomodel_embeddertest.cpp",
       ]
-      deps += [ "..///xfa/fxfa" ]
+      deps += [ "../xfa/fxfa" ]
     }
   }
 }