Remove windowbits change for level 1

[rhpvorderman]

This fixes the current 2.0.x branch in this regard. It is a single commit, so it can be cherry-picked for #1393

Fixes #1417

[nmoinvaz]

I think that whole if statement can go bye-bye. Looking back, I think it was commit 951764a that allowed any size of window with deflate quick algorithm.

[rhpvorderman]

@nmoinvaz
Done. I amended the commit. Either this commit or ce6789c can be merged into the latest 2.0.x release to fix the problem.

[Dead2]

LGTM

[codecov]

Codecov Report

Base: 81.11% // Head: 75.04% // Decreases project coverage by -6.07% ⚠️

Coverage data is based on head (b2102b2) compared to base (b56a2fd).
Patch has no changes to coverable lines.

Additional details and impacted files

@@                  Coverage Diff                   @@
##           stable-pre-release    #1431      +/-   ##
======================================================
- Coverage               81.11%   75.04%   -6.07%     
======================================================
  Files                      76      139      +63     
  Lines                    8344    13996    +5652     
  Branches                 1373     2504    +1131     
======================================================
+ Hits                     6768    10503    +3735     
- Misses                   1036     2452    +1416     
- Partials                  540     1041     +501     

Flag	Coverage Δ
macos_clang	69.81% <ø> (+0.01%)	⬆️
macos_gcc	68.45% <ø> (-0.01%)	⬇️
ubuntu_clang	?
ubuntu_clang_debug	?
ubuntu_clang_inflate_allow_invalid_dist	?
ubuntu_clang_inflate_strict	?
ubuntu_clang_mmap	?
ubuntu_clang_msan	?
ubuntu_clang_pigz	∅ <ø> (∅)
ubuntu_clang_pigz_no_optim	∅ <ø> (∅)
ubuntu_clang_pigz_no_threads	?
ubuntu_gcc	?
ubuntu_gcc_aarch64	70.64% <ø> (-4.87%)	⬇️
ubuntu_gcc_aarch64_compat_no_opt	68.90% <ø> (-4.27%)	⬇️
ubuntu_gcc_aarch64_no_acle	69.47% <ø> (-5.23%)	⬇️
ubuntu_gcc_aarch64_no_neon	69.93% <ø> (-5.29%)	⬇️
ubuntu_gcc_armhf	?
ubuntu_gcc_armhf_compat_no_opt	68.92% <ø> (-4.24%)	⬇️
ubuntu_gcc_armhf_no_acle	70.85% <ø> (-4.87%)	⬇️
ubuntu_gcc_armhf_no_neon	?
ubuntu_gcc_armsf	70.20% <ø> (-5.34%)	⬇️
ubuntu_gcc_armsf_compat_no_opt	69.82% <ø> (-3.34%)	⬇️
ubuntu_gcc_compat_no_opt	?
ubuntu_gcc_mingw_i686	?
ubuntu_gcc_mingw_x86_64	68.77% <ø> (+68.77%)	⬆️
ubuntu_gcc_no_avx2	70.54% <ø> (-5.00%)	⬇️
ubuntu_gcc_no_ctz	71.24% <ø> (-5.15%)	⬇️
ubuntu_gcc_no_ctzll	70.96% <ø> (-5.13%)	⬇️
ubuntu_gcc_no_pclmulqdq	66.82% <ø> (-5.07%)	⬇️
ubuntu_gcc_no_sse2	69.57% <ø> (-4.92%)	⬇️
ubuntu_gcc_no_sse4	66.97% <ø> (-5.10%)	⬇️
ubuntu_gcc_o3	68.26% <ø> (-4.97%)	⬇️
ubuntu_gcc_osb	70.78% <ø> (-5.50%)	⬇️
ubuntu_gcc_pigz	33.79% <ø> (+0.85%)	⬆️
ubuntu_gcc_pigz_aarch64	36.84% <ø> (+0.92%)	⬆️
ubuntu_gcc_ppc	70.83% <ø> (-5.08%)	⬇️
ubuntu_gcc_ppc64	71.61% <ø> (-5.06%)	⬇️
ubuntu_gcc_ppc64le	70.48% <ø> (-4.94%)	⬇️
ubuntu_gcc_s390x	72.32% <ø> (-4.86%)	⬇️
ubuntu_gcc_sparc64	?
win64_gcc	∅ <ø> (∅)
win64_gcc_compat_no_opt	∅ <ø> (∅)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
deflate.c	76.07% <ø> (-0.33%)	⬇️
zutil_p.h	0.00% <0.00%> (-71.43%)	⬇️
arch/x86/slide_avx.c	55.00% <0.00%> (-45.00%)	⬇️
zutil.c	41.66% <0.00%> (-40.48%)	⬇️
arch/x86/adler32_avx.c	63.15% <0.00%> (-36.85%)	⬇️
arch/x86/compare258_avx.c	66.66% <0.00%> (-33.34%)	⬇️
deflate.h	20.00% <0.00%> (-27.83%)	⬇️
trees.c	84.15% <0.00%> (-12.34%)	⬇️
trees_emit.h	92.30% <0.00%> (-7.70%)	⬇️
test/fuzz/checksum_fuzzer.c	86.66% <0.00%> (-7.57%)	⬇️
... and 113 more

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