remove reads that loose data

Author: Matt Land

adafruit_imageload/pnm/__init__.py

@@ -41,11 +41,9 @@ def load(f, header, *, bitmap=None, palette=None):
     while True:
         # We have all we need at length 3
         if len(pnm_header) == 3:
-            f.read(1)
             break
         if magic_number.startswith(b"P1") or magic_number.startswith(b"P4"):
             if len(pnm_header) == 2:
-                f.read(1)
                 from . import pbm
 
                 return pbm.load(