[12632] Revert previous commit (see Notes)

dep/include/mysql/my_getopt.h

@@ -60,7 +60,7 @@ struct my_option
 
 typedef my_bool (*my_get_one_option)(int, const struct my_option *, char *);
 typedef void (*my_error_reporter)(enum loglevel level, const char *format, ...);
-/**
+/*
   Used to retrieve a reference to the object (variable) that holds the value
   for the given option. For example, if var_type is GET_UINT, the function
   must return a pointer to a variable of type uint. A argument is stored in

dep/include/mysql/my_global.h

@@ -1556,13 +1556,13 @@ inline void  operator delete[](void*, void*) { /* Do nothing */ }
 #endif
 
 #ifndef HAVE_RINT
-/**
+/*
    All integers up to this number can be represented exactly as double precision
    values (DBL_MANT_DIG == 53 for IEEE 754 hardware).
 */
 #define MAX_EXACT_INTEGER ((1LL << DBL_MANT_DIG) - 1)
 
-/**
+/*
    rint(3) implementation for platforms that do not have it.
    Always rounds to the nearest integer with ties being rounded to the nearest
    even integer to mimic glibc's rint() behavior in the "round-to-nearest"

dep/include/mysql/mysql_com.h

@@ -184,27 +184,27 @@ enum enum_server_command
 #define SERVER_MORE_RESULTS_EXISTS 8    /* Multi query - next query exists */
 #define SERVER_QUERY_NO_GOOD_INDEX_USED 16
 #define SERVER_QUERY_NO_INDEX_USED      32
-/**
+/*
   The server was able to fulfill the clients request and opened a
   read-only non-scrollable cursor for a query. This flag comes
   in reply to COM_STMT_EXECUTE and COM_STMT_FETCH commands.
 */
 #define SERVER_STATUS_CURSOR_EXISTS 64
-/**
+/*
   This flag is sent when a read-only cursor is exhausted, in reply to
   COM_STMT_FETCH command.
 */
 #define SERVER_STATUS_LAST_ROW_SENT 128
 #define SERVER_STATUS_DB_DROPPED        256 /* A database was dropped */
 #define SERVER_STATUS_NO_BACKSLASH_ESCAPES 512
-/**
+/*
   Sent to the client if after a prepared statement reprepare
   we discovered that the new statement returns a different 
   number of result set columns.
 */
 #define SERVER_STATUS_METADATA_CHANGED 1024
 
-/**
+/*
   Server status flags that must be cleared when starting
   execution of a new SQL statement.
   Flags from this set are only added to the