doc: 3.7 release_notes: Remove mention of never introduced options

ac52bd6 removed from the
tree some kconfig options which weren't there for a full release.
Let's also not mention them in the release notes so we avoid
broken links.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

Author: aescolar

doc/releases/release-notes-3.7.rst

@@ -175,7 +175,6 @@ Deprecated in this release
 
     * :kconfig:option:`CONFIG_EVENTFD_MAX` (:kconfig:option:`CONFIG_ZVFS_EVENTFD_MAX`)
     * :kconfig:option:`CONFIG_FNMATCH` (:kconfig:option:`CONFIG_POSIX_C_LIB_EXT`)
-    * :kconfig:option:`CONFIG_GETENTROPY` (:kconfig:option:`CONFIG_POSIX_C_LIB_EXT`)
     * :kconfig:option:`CONFIG_GETOPT` (:kconfig:option:`CONFIG_POSIX_C_LIB_EXT`)
     * :kconfig:option:`CONFIG_MAX_PTHREAD_COUNT` (:kconfig:option:`CONFIG_POSIX_THREAD_THREADS_MAX`)
     * :kconfig:option:`CONFIG_MAX_PTHREAD_KEY_COUNT` (:kconfig:option:`CONFIG_POSIX_THREAD_KEYS_MAX`)
@@ -184,8 +183,6 @@ Deprecated in this release
     * :kconfig:option:`CONFIG_POSIX_CLOCK` (:kconfig:option:`CONFIG_POSIX_CLOCK_SELECTION`,
       :kconfig:option:`CONFIG_POSIX_CPUTIME`, :kconfig:option:`CONFIG_POSIX_MONOTONIC_CLOCK`,
       :kconfig:option:`CONFIG_POSIX_TIMERS`, and :kconfig:option:`CONFIG_POSIX_TIMEOUTS`)
-    * :kconfig:option:`CONFIG_POSIX_CONFSTR` (:kconfig:option:`CONFIG_POSIX_SINGLE_PROCESS`)
-    * :kconfig:option:`CONFIG_POSIX_ENV` (:kconfig:option:`CONFIG_POSIX_SINGLE_PROCESS`)
     * :kconfig:option:`CONFIG_POSIX_FS` (:kconfig:option:`CONFIG_POSIX_FILE_SYSTEM`)
     * :kconfig:option:`CONFIG_POSIX_MAX_FDS` (:kconfig:option:`CONFIG_POSIX_OPEN_MAX` and
       :kconfig:option:`CONFIG_ZVFS_OPEN_MAX`)
@@ -195,7 +192,6 @@ Deprecated in this release
     * :kconfig:option:`CONFIG_POSIX_PUTMSG` (:kconfig:option:`CONFIG_XOPEN_STREAMS`)
     * :kconfig:option:`CONFIG_POSIX_SIGNAL` (:kconfig:option:`CONFIG_POSIX_SIGNALS`)
     * :kconfig:option:`CONFIG_POSIX_SYSCONF` (:kconfig:option:`CONFIG_POSIX_SINGLE_PROCESS`)
-    * :kconfig:option:`CONFIG_POSIX_SYSLOG` (:kconfig:option:`CONFIG_XSI_SYSTEM_LOGGING`)
     * :kconfig:option:`CONFIG_POSIX_UNAME` (:kconfig:option:`CONFIG_POSIX_SINGLE_PROCESS`)
     * :kconfig:option:`CONFIG_PTHREAD` (:kconfig:option:`CONFIG_POSIX_THREADS`)
     * :kconfig:option:`CONFIG_PTHREAD_BARRIER` (:kconfig:option:`CONFIG_POSIX_BARRIERS`)