Remove 3.11 beta release notice from macOS installer displays (GH-95669)

Mac/BuildScript/resources/ReadMe.rtf

-{\rtf1\ansi\ansicpg1252\cocoartf2638
+{\rtf1\ansi\ansicpg1252\cocoartf2639
 \cocoatextscaling0\cocoaplatform0{\fonttbl\f0\fswiss\fcharset0 Helvetica;\f1\fswiss\fcharset0 Helvetica-Bold;\f2\fswiss\fcharset0 Helvetica-Oblique;
 \f3\fmodern\fcharset0 CourierNewPSMT;\f4\fmodern\fcharset0 Courier;}
 {\colortbl;\red255\green255\blue255;}
@@ -8,12 +8,6 @@
 
 \f0\fs24 \cf0 This package will install Python $FULL_VERSION for macOS $MACOSX_DEPLOYMENT_TARGET for the following architecture(s): $ARCHITECTURES.\
 \
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
-
-\f1\b \cf0 NOTE: 
-\f0\b0 This is a beta test preview of Python 3.11.0, the next feature release of Python 3.  It is not intended for production use.\
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
-\cf0 \
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
 
 \f1\b \cf0 \ul \ulc0 Certificate verification and OpenSSL\

Mac/BuildScript/resources/Welcome.rtf

-{\rtf1\ansi\ansicpg1252\cocoartf2638
+{\rtf1\ansi\ansicpg1252\cocoartf2639
 \cocoascreenfonts1\cocoatextscaling0\cocoaplatform0{\fonttbl\f0\fswiss\fcharset0 Helvetica;\f1\fswiss\fcharset0 Helvetica-Bold;\f2\fmodern\fcharset0 CourierNewPSMT;
 }
 {\colortbl;\red255\green255\blue255;}
 {\*\expandedcolortbl;;}
-\paperw11900\paperh16840\margl1440\margr1440\vieww12200\viewh10880\viewkind0
+\paperw11905\paperh16837\margl1440\margr1440\vieww12200\viewh10880\viewkind0
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
 
 \f0\fs24 \cf0 This package will install 
@@ -23,8 +23,4 @@
 At the end of this install, click on 
 \f2 Install Certificates
 \f0  to install a set of current SSL root certificates.\
-\
-
-\f1\b NOTE: 
-\f0\b0 This is a beta test preview of Python 3.11.0, the next feature release of Python 3.  It is not intended for production use.\
 }
\ No newline at end of file