Delete reference to "no_build_hooks" GN variable (part 2)

It's a no-op and I'm going to remove it.

Bug: chromium:40114668
Change-Id: If401cfb8218597a38f3ef45baf1ac2eb5f765cbb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/374920
Auto-Submit: Andrew Grieve <agrieve@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Jeremy Leconte <jleconte@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43783}

webrtc.gni

@@ -1210,21 +1210,11 @@ if (is_android) {
                                "visibility",
                              ])
 
-      errorprone_args = []
-
-      # Treat warnings as errors.
-      errorprone_args += [ "-Werror" ]
-
       # Add any arguments defined by the invoker.
       if (defined(invoker.errorprone_args)) {
-        errorprone_args += invoker.errorprone_args
+        errorprone_args = invoker.errorprone_args
       }
 
-      if (!defined(deps)) {
-        deps = []
-      }
-
-      no_build_hooks = true
       not_needed([ "android_manifest" ])
     }
   }
@@ -1239,16 +1229,6 @@ if (is_android) {
                                "suppressed_configs",
                                "visibility",
                              ])
-
-      # Treat warnings as errors.
-      errorprone_args = []
-      errorprone_args += [ "-Werror" ]
-
-      if (!defined(deps)) {
-        deps = []
-      }
-
-      no_build_hooks = true
     }
   }
 
@@ -1262,16 +1242,6 @@ if (is_android) {
                                "suppressed_configs",
                                "visibility",
                              ])
-
-      # Treat warnings as errors.
-      errorprone_args = []
-      errorprone_args += [ "-Werror" ]
-
-      if (!defined(deps)) {
-        deps = []
-      }
-
-      no_build_hooks = true
     }
   }
 }