Fonts: undo change done in b884533 since 19d1ad0 made them unnecessary. (#8794, #8850)

imstb_truetype.h

@@ -4017,8 +4017,7 @@ STBTT_DEF void stbtt_PackSetSkipMissingCodepoints(stbtt_pack_context *spc, int s
 
 #define STBTT__OVER_MASK  (STBTT_MAX_OVERSAMPLE-1)
 
-/*static*/
-void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
+static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
 {
    unsigned char buffer[STBTT_MAX_OVERSAMPLE];
    int safe_w = w - kernel_width;
@@ -4080,8 +4079,7 @@ void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes
    }
 }
 
-/*static*/
-void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
+static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
 {
    unsigned char buffer[STBTT_MAX_OVERSAMPLE];
    int safe_h = h - kernel_width;
@@ -4143,8 +4141,7 @@ void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes
    }
 }
 
-/*static*/
-float stbtt__oversample_shift(int oversample)
+static float stbtt__oversample_shift(int oversample)
 {
    if (!oversample)
       return 0.0f;