[libc++][docs] Remove "Last Updated" entries from the docs

ldionne · memfrob · commit e314dab2d4b3 · 2022-10-04T18:40:52.000-04:00
Those don't provide a lot of value, and they can easily be wrong anyway. Differential Revision: https://reviews.llvm.org/D109087
diff --git a/libcxx/docs/Status/Cxx14.rst b/libcxx/docs/Status/Cxx14.rst
@@ -48,5 +48,3 @@ Library Working Group Issues Status
    :file: Cxx14Issues.csv
    :header-rows: 1
    :widths: auto
-
-Last Updated: 25-Mar-2014
diff --git a/libcxx/docs/Status/Cxx17.rst b/libcxx/docs/Status/Cxx17.rst
@@ -53,5 +53,3 @@ Library Working Group Issues Status
    :file: Cxx17Issues.csv
    :header-rows: 1
    :widths: auto
-
-Last Updated: 17-Nov-2020
diff --git a/libcxx/docs/Status/Cxx20.rst b/libcxx/docs/Status/Cxx20.rst
@@ -55,5 +55,3 @@ Library Working Group Issues Status
    :file: Cxx20Issues.csv
    :header-rows: 1
    :widths: auto
-
-Last Updated: 24-May-2021
diff --git a/libcxx/docs/Status/Cxx2b.rst b/libcxx/docs/Status/Cxx2b.rst
@@ -46,5 +46,3 @@ Library Working Group Issues Status
    :file: Cxx2bIssues.csv
    :header-rows: 1
    :widths: auto
-
-Last Updated: 22-July-2021
