Remove unsupported -auto C flag from Intel oneAPI stanza (#2059)

TYPE: bug fix

KEYWORDS: intel, compilation, oneapi

SOURCE: internal

DESCRIPTION OF CHANGES:
Problem:
The `-auto` flag is not supported by the Intel C compilers. See https://www.intel.com/content/www/us/en/docs/cpp-compiler/developer-guide-reference/2021-10/alphabetical-option-list.html for full list of supported icx flags.

Solution:
Remove the flag, no output changes should happen as the flag was previously being ignored if it didn't cause an error.

arch/configure.defaults

@@ -2132,7 +2132,7 @@ DESCRIPTION     =       INTEL ($SFC/$SCC) : oneAPI LLVM
 DMPARALLEL      =       # 1
 OMPCPP          =       # -D_OPENMP
 OMP             =       # -qopenmp -fpp -auto
-OMPCC           =       # -qopenmp -auto
+OMPCC           =       # -qopenmp
 SFC             =       ifx
 SCC             =       icx
 CCOMP           =       icx