Database test changes

[nabobalis]

META ISSUE ACTIVATE:

Changed Tests:

In sunpy/database/tests/test_database.py called test_fetch_duplicates and test_fetch.
Database len was 4, now 2. Changed by PR #2440.

In sunpy/database/tests/test_attrs.py, old results and names below. Changed by PR #2191.

test_walker_create_vso_instrument
# First result
wavemin=0.4132806430668068,
wavemax=7.293187818826002e-05
# Second result
wavemin=0.4132806430668068,
wavemax=7.293187818826002e-05

test_walker_create_wave
wavemin=0.4132806430668068,
wavemax=7.293187818826002e-05

In sunpy/database/tests/test_database.py, changed by PR #2191.

test_add_entries_from_qr_ignore_duplicates
assert len(database) == 50

In sunpy/database/tests/test_tables.py, changed by PR #2191.

test_entry_from_qr_block
fileid='/archive/soho/private/data/processed/eit/lz/2001/01/efz20010101.010014',
observation_time_start=datetime(2001, 1, 1, 1, 0, 14),
observation_time_end=datetime(2001, 1, 1, 1, 0, 21),
instrument='EIT', size=2059.0, wavemin=17.1, wavemax=17.1)

test_entries_from_query_result
fileid='/archive/soho/private/data/processed/eit/lz/2001/01/efz20010101.070014',
observation_time_start=datetime(2001, 1, 1, 7, 0, 14),
observation_time_end=datetime(2001, 1, 1, 7, 0, 21),
instrument='EIT', size=2059.0, wavemin=17.1, wavemax=17.1)

test_entry_from_query_results_with_none_wave_and_default_unit
assert len(entries) == 7
#These were removed since they were not returned anymore.
DatabaseEntry(
source='SOHO', provider='SDAC', physobs='intensity',
fileid='/archive/soho/private/data/processed/virgo/spm/SPM_blue_intensity_series.tar.gz',
observation_time_start=datetime(1996, 4, 11, 0, 0, 0),
observation_time_end=datetime(2014, 3, 30, 23, 59, 0),
instrument='VIRGO', size=32652.0, wavemin=None,
wavemax=None),
DatabaseEntry(
source='SOHO', provider='SDAC', physobs='intensity',
fileid='/archive/soho/private/data/processed/virgo/spm/SPM_green_intensity_series.tar.gz',
observation_time_start=datetime(1996, 4, 11, 0, 0, 0),
observation_time_end=datetime(2014, 3, 30, 23, 59, 0),
instrument='VIRGO', size=32652.0, wavemin=None,
wavemax=None),
DatabaseEntry(
source='SOHO', provider='SDAC', physobs='intensity',
fileid='/archive/soho/private/data/processed/virgo/spm/SPM_red_intensity_series.tar.gz',
observation_time_start=datetime(1996, 4, 11, 0, 0, 0),
observation_time_end=datetime(2014, 3, 30, 23, 59, 0),
instrument='VIRGO', size=32652.0, wavemin=None,
wavemax=None),