FS-7707: fix build error on centos7

src/switch_cpp.cpp

@@ -839,14 +839,13 @@ SWITCH_DECLARE(char *) CoreSession::getDigits(int maxdigits,
 											  int timeout,
 											  int interdigit)
 {
-    switch_status_t status;
 	this_check((char *)"");
 	sanity_check((char *)"");
 	begin_allow_threads();
 	char terminator;
 
 	memset(dtmf_buf, 0, sizeof(dtmf_buf));
-    status = switch_ivr_collect_digits_count(session, 
+	switch_ivr_collect_digits_count(session, 
 									dtmf_buf,
 									sizeof(dtmf_buf),
 									maxdigits, 
@@ -913,12 +912,11 @@ SWITCH_DECLARE(char *) CoreSession::playAndGetDigits(int min_digits,
 													 int digit_timeout,
 													 const char *transfer_on_failure)
 {
-    switch_status_t status;
 	sanity_check((char *)"");
 	this_check((char *)"");
 	begin_allow_threads();
 	memset(dtmf_buf, 0, sizeof(dtmf_buf));
-    status = switch_play_and_get_digits( session, 
+	switch_play_and_get_digits( session, 
 								(uint32_t) min_digits,
 								(uint32_t) max_digits,
 								(uint32_t) max_tries,