Removed "-std=c99" and "-pedantic" from CFLAGS

* C99 breaks the build on some platforms
* Pedantic causes unhelpful noise

Author: Michae Penick

ext/config.m4

@@ -149,10 +149,10 @@ if test "$PHP_CASSANDRA" != "no"; then
 
   case $(uname -s) in
     Linux)
-      CASSANDRA_CFLAGS="-std=c99 -Wall -pedantic -Wextra -Wno-long-long -Wno-deprecated-declarations -Wno-unused-parameter -Wno-unused-result -Wno-variadic-macros -Wno-extra-semi -pthread"
+      CASSANDRA_CFLAGS="-Wall -Wextra -Wno-long-long -Wno-deprecated-declarations -Wno-unused-parameter -Wno-unused-result -Wno-variadic-macros -Wno-extra-semi -pthread"
       ;;
     Darwin)
-      CASSANDRA_CFLAGS="-std=c99 -Wall -pedantic -Wextra -Wno-long-long -Wno-deprecated-declarations -Wno-unused-parameter -Wno-unused-result -Wno-variadic-macros -Wno-extra-semi"
+      CASSANDRA_CFLAGS="-Wall -Wextra -Wno-long-long -Wno-deprecated-declarations -Wno-unused-parameter -Wno-unused-result -Wno-variadic-macros -Wno-extra-semi"
       ;;
   esac