Remove the icu46 submodule

.gitmodules

@@ -4,9 +4,6 @@
 [submodule "vendor/gyp"]
 	path = vendor/gyp
 	url = https://git.chromium.org/git/external/gyp.git
-[submodule "vendor/icu46"]
-	path = vendor/icu46
-	url = https://git.chromium.org/git/chromium/third_party/icu46.git
 [submodule "vendor/buildtools"]
 	path = vendor/buildtools
 	url = https://chromium.googlesource.com/chromium/buildtools.git

patches/link-dependencies.patch

@@ -1,8 +1,8 @@
 diff --git a/Makefile b/Makefile
-index f49be61..ad551e6 100644
+index f49be61..0626d02 100644
 --- a/Makefile
 +++ b/Makefile
-@@ -463,13 +463,7 @@ gtags.clean:
+@@ -463,13 +463,5 @@ gtags.clean:
  # Dependencies.
  # Remember to keep these in sync with the DEPS file.
  dependencies:
@@ -17,6 +17,4 @@ index f49be61..ad551e6 100644
 -	  git fetch origin; \
 -	  git checkout 5d89977ce55240995d1596fe420b818468f5ec37 )
 +	( test -h build/gyp || ln -s ../../gyp build/gyp )
-+	( test -d third_party || mkdir third_party )
-+	( test -h third_party/icu || ln -s ../../icu46 third_party/icu )
 +	( test -h buildtools || ln -s ../buildtools )

vendor/icu46

@@ -1 +0,0 @@
-Subproject commit 44fc849c472ba8bf2c0f97c8e9546a99f114c182