ccmain: Remove unused constants

In osdetect.cpp, a local definition of kMinCredibleResolution was
identical to a global one, so the local one could be removed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

ccmain/control.cpp

@@ -51,8 +51,6 @@
 #define MAX_XHEIGHT_DIFF  3
 
 const char* const kBackUpConfigFile = "tempconfigdata.config";
-// Multiple of x-height to make a repeated word have spaces in it.
-const double kRepcharGapThreshold = 0.5;
 // Min believable x-height for any text when refitting as a fraction of
 // original x-height
 const double kMinRefitXHeightFraction = 0.5;

ccmain/osdetect.cpp

@@ -39,7 +39,6 @@ const int kMaxCharactersToTry = 5 * kMinCharactersToTry;
 const float kSizeRatioToReject = 2.0;
 const int kMinAcceptableBlobHeight = 10;
 
-const float kOrientationAcceptRatio = 1.3;
 const float kScriptAcceptRatio = 1.3;
 
 const float kHanRatioInKorean = 0.7;
@@ -61,8 +60,6 @@ const char* ScriptDetector::fraktur_script_ = "Fraktur";
 
 // Minimum believable resolution.
 const int kMinCredibleResolution = 70;
-// Default resolution used if input is not believable.
-const int kDefaultResolution = 300;
 
 void OSResults::update_best_orientation() {
   float first = orientations[0];
@@ -167,7 +164,6 @@ void remove_nontext_regions(tesseract::Tesseract *tess, BLOCK_LIST *blocks,
   int vertical_y = 1;
   tesseract::TabVector_LIST v_lines;
   tesseract::TabVector_LIST h_lines;
-  const int kMinCredibleResolution = 70;
   int resolution = (kMinCredibleResolution > pixGetXRes(pix)) ?
       kMinCredibleResolution : pixGetXRes(pix);
 

ccmain/pagesegmain.cpp

@@ -54,10 +54,6 @@
 
 namespace tesseract {
 
-/// Minimum believable resolution.
-const int kMinCredibleResolution = 70;
-/// Default resolution used if input in not believable.
-const int kDefaultResolution = 300;
 // Max erosions to perform in removing an enclosing circle.
 const int kMaxCircleErosions = 8;