Remove unneeded detail

Author: eholk

docs/code-quality/c6059.md

@@ -79,7 +79,7 @@ void f( )
 
 ## Heuristics
 
-This analysis detects when the target buffer size is passed unmodified into the length parameter of the string manipulation function. The analysis is also able to detect cases where after simple computations the buffer size is passed as the length parameter. This warning isn't given if some other value is passed as the length parameter, even if that value is incorrect.
+This analysis detects when the target buffer size is passed unmodified into the length parameter of the string manipulation function. This warning isn't given if some other value is passed as the length parameter, even if that value is incorrect.
 
 Consider the following code, generates warning C6059: