remove tabs and duplicate #include in c api

Summary:
fix lint error about tabs and duplicate includes.
Closes https://github.com/facebook/rocksdb/pull/1476

Differential Revision: D4149646

Pulled By: lightmark

fbshipit-source-id: 2e0a632

db/c.cc

@@ -1900,7 +1900,7 @@ rocksdb_ratelimiter_t* rocksdb_ratelimiter_create(
     int32_t fairness) {
   rocksdb_ratelimiter_t* rate_limiter = new rocksdb_ratelimiter_t;
   rate_limiter->rep = NewGenericRateLimiter(rate_bytes_per_sec,
-		  refill_period_us, fairness);
+                                            refill_period_us, fairness);
   return rate_limiter;
 }
 

db/c_test.c

@@ -1046,7 +1046,6 @@ int main(int argc, char** argv) {
 }
 
 #else
-#include <stdio.h>
 
 int main() {
   fprintf(stderr, "SKIPPED\n");