Update README.md

README.md

@@ -37,26 +37,12 @@ Just copy the files to your build tree and use a C++11 compiler
 
 Below are some [benchmarks](benchmarks) under Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz:
 
-#### Single thread bench
 |library|log lines|single thread|10 threads
 |-------|:-------:|:-----:|------:|
 |*boost log v1.56*|1,000,000|**4.207s**|**6.592s**|
 |*glog v0.3.3*|1,000,000|**1.077s**|**1.678s**|
 |*spdlog*|1,000,000|**0.975s**|**0.961s**|
 
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-#### 10 threads bench
-|library|log lines|threads|elapsed|
-|-------|:-------:|:-----:|------:|
-|*boost log v1.56*|1,000,000|10|**6.592s**|
-|*glog v0.3.3*|1,000,000|10|**1.678s**|
-|*spdlog*|1,000,000|10|**0.961s**|
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 ## Usage Example
 ```c++
 #include <iostream>