Remove deprecated versions of LaunchProcess.

base/process/launch.h

Index: base/process/launch.h
diff --git a/base/process/launch.h b/base/process/launch.h
index e9fb3b90fce81a48dc25a1386d5159df73b2a512..d7e2351d1c3cc262f1c2d645dec7395c0caff320 100644
--- a/base/process/launch.h
+++ b/base/process/launch.h
@@ -159,12 +159,6 @@ struct BASE_EXPORT LaunchOptions {
 BASE_EXPORT Process LaunchProcess(const CommandLine& cmdline,
                                   const LaunchOptions& options);
 
-// Deprecated version.
-// TODO(rvargas) crbug.com/417532: Remove this after migrating all consumers.
-BASE_EXPORT bool LaunchProcess(const CommandLine& cmdline,
-                               const LaunchOptions& options,
-                               ProcessHandle* process_handle);
-
 #if defined(OS_WIN)
 // Windows-specific LaunchProcess that takes the command line as a
 // string.  Useful for situations where you need to control the
@@ -195,12 +189,6 @@ BASE_EXPORT Process LaunchElevatedProcess(const CommandLine& cmdline,
 BASE_EXPORT Process LaunchProcess(const std::vector<std::string>& argv,
                                   const LaunchOptions& options);
 
-// Deprecated version.
-// TODO(rvargas) crbug.com/417532: Remove this after migrating all consumers.
-BASE_EXPORT bool LaunchProcess(const std::vector<std::string>& argv,
-                               const LaunchOptions& options,
-                               ProcessHandle* process_handle);
-
 // Close all file descriptors, except those which are a destination in the
 // given multimap. Only call this function in a child process where you know
 // that there aren't any other threads.