Update to build on Xcode 6.0: collection of similar const var not used...

Update to build on Xcode 6.0: collection of similar const var not used warnings/errors [-Wunused-const-variable]

indra/llcommon/llsys.cpp

@@ -99,8 +99,6 @@ const char MEMINFO_FILE[] = "/proc/meminfo";
 extern int errno;
 #endif
 
-
-static const S32 CPUINFO_BUFFER_SIZE = 16383;
 LLCPUInfo gSysCPU;
 
 // Don't log memory info any more often than this. It also serves as our
@@ -672,8 +670,6 @@ const std::string& LLOSInfo::getOSVersionString() const
 	return mOSVersionString;
 }
 
-const S32 STATUS_SIZE = 8192;
-
 //static
 U32 LLOSInfo::getProcessVirtualSizeKB()
 {

indra/llcommon/lltimer.cpp

@@ -39,14 +39,10 @@
 #	error "architecture not supported"
 #endif
 
-
 //
 // Locally used constants
 //
-const F64 SEC_TO_MICROSEC = 1000000.f;
 const U64 SEC_TO_MICROSEC_U64 = 1000000;
-const F64 USEC_TO_SEC_F64 = 0.000001;
-
 
 //---------------------------------------------------------------------------
 // Globals and statics

indra/llmath/llline.cpp

@@ -30,7 +30,6 @@
 #include "llline.h"
 #include "llrand.h"
 
-const F32 SOME_SMALL_NUMBER = 1.0e-5f;
 const F32 SOME_VERY_SMALL_NUMBER = 1.0e-8f;
 
 LLLine::LLLine()