Remove forgotten obsolete session INI directives (#14238)

The session.hash_function and session.hash_bits_per_character INI
directives have been removed in PHP 7.1:
3467526

Author: petk

ext/session/mod_files.bat

@@ -6,11 +6,11 @@ IF _%1_==_AUTO_ (
 )
 
 IF _%2_==__ (
-	ECHO Usage %0 ^<basedir^> ^<depth^> ^[^hash_bits^]
+	ECHO Usage %0 ^<basedir^> ^<depth^> ^[^bits^]
 	ECHO.
 	ECHO Where ^<basedir^>   is the session directory
 	ECHO       ^<depth^>     is the number of levels defined in session.save_path
-	ECHO       ^[hash_bits^] is the number of bits defined in session.hash_bits_per_character
+	ECHO       ^[bits^]      is the number of bits defined in session.sid_bits_per_character
 	EXIT /B 1
 )
 
@@ -53,5 +53,5 @@ ECHO ERROR: Invalid depth : %2
 EXIT /B 0
 
 :BitsError
-ECHO ERROR: Invalid hash_bits : %3
+ECHO ERROR: Invalid bits : %3
 EXIT /B 0

ext/session/tests/031.phpt

@@ -3,7 +3,6 @@ Test basic function : variation2
 --INI--
 session.use_strict_mode=1
 session.save_handler=files
-session.hash_bits_per_character=4
 session.gc_probability=1
 session.gc_divisor=1000
 session.gc_maxlifetime=300

ext/session/tests/session_basic2.phpt

@@ -5,8 +5,6 @@ session.use_strict_mode=0
 session.use_only_cookies=0
 session.use_trans_sid=1
 session.save_handler=files
-session.hash_bits_per_character=4
-session.hash_function=0
 session.gc_probability=1
 session.gc_divisor=1000
 session.gc_maxlifetime=300

ext/session/tests/session_basic3.phpt

@@ -5,8 +5,6 @@ session.use_strict_mode=0
 session.use_only_cookies=0
 session.use_trans_sid=1
 session.save_handler=files
-session.hash_bits_per_character=4
-session.hash_function=0
 session.gc_probability=1
 session.gc_divisor=1000
 session.gc_maxlifetime=300

ext/session/tests/session_basic4.phpt

@@ -5,8 +5,6 @@ session.use_strict_mode=0
 session.use_only_cookies=0
 session.use_trans_sid=1
 session.save_handler=files
-session.hash_bits_per_character=4
-session.hash_function=0
 session.gc_probability=1
 session.gc_divisor=1000
 session.gc_maxlifetime=300