remove duplicate typedef of stbi_uc

stb_image.h

@@ -1,4 +1,4 @@
-/* stb_image - v1.36 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c
+/* stb_image - v1.37 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c
    when you control the images you're loading
                                      no warranty implied; use at your own risk
 
@@ -26,6 +26,7 @@
       - overridable dequantizing-IDCT, YCbCr-to-RGB conversion (define STBI_SIMD)
 
    Latest revisions:
+      1.37 (2014-06-04) remove duplicate typedef
       1.36 (2014-06-03) converted to header file, allow reading incorrect iphoned-images without iphone flag
       1.35 (2014-05-27) warnings, bugfixes, TGA optimization, etc
       1.34 (unknown   ) warning fix
@@ -369,14 +370,12 @@ STBIDEF void stbi_install_YCbCr_to_RGB(stbi_YCbCr_to_RGB_run func);
 
 
 #ifdef _MSC_VER
-typedef unsigned char  stbi_uc;
 typedef unsigned short stbi__uint16;
 typedef   signed short stbi__int16;
 typedef unsigned int   stbi__uint32;
 typedef   signed int   stbi__int32;
 #else
 #include <stdint.h>
-typedef uint8_t  stbi_uc;
 typedef uint16_t stbi__uint16;
 typedef int16_t  stbi__int16;
 typedef uint32_t stbi__uint32;
@@ -4535,6 +4534,8 @@ STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int
 
 /*
    revision history:
+      1.37 (2014-06-04)
+             remove duplicate typedef
       1.36 (2014-06-03)
              convert to header file single-file library
              if de-iphone isn't set, load iphone images color-swapped instead of returning NULL