Remove files related to IMAP

Author: derickr

.github/scripts/windows/test_task.bat

@@ -108,12 +108,6 @@ start %DEPS_DIR%\bin\snmpd.exe -C -c %APPVEYOR_BUILD_FOLDER%\ext\snmp\tests\snmp
 set PHP_BUILD_DIR=%PHP_BUILD_OBJ_DIR%\Release
 if "%THREAD_SAFE%" equ "1" set PHP_BUILD_DIR=%PHP_BUILD_DIR%_TS
 
-rem prepare for mail
-curl -sLo hMailServer.exe https://www.hmailserver.com/download_file/?downloadid=271
-hMailServer.exe /verysilent
-cd %APPVEYOR_BUILD_FOLDER%
-%PHP_BUILD_DIR%\php.exe -dextension_dir=%PHP_BUILD_DIR% -dextension=com_dotnet appveyor\setup_hmailserver.php
-
 mkdir %PHP_BUILD_DIR%\test_file_cache
 rem generate php.ini
 echo extension_dir=%PHP_BUILD_DIR% > %PHP_BUILD_DIR%\php.ini

UPGRADING

@@ -375,6 +375,10 @@ PDO_SQLITE:
 8. Removed Extensions and SAPIs
 ========================================
 
+- IMAP:
+  . The IMAP has been unbundled and moved to PECL.
+    RFC: https://wiki.php.net/rfc/unbundle_imap_pspell_oci8
+
 - PSpell:
   . The pspell extension has been unbundled and moved to PECL.
     RFC: https://wiki.php.net/rfc/unbundle_imap_pspell_oci8