trying to drop columns on a series silently fails


```python
c = pd.DataFrame({ 'a':[1,2] ,'b':[3,4]})

d = c.iloc[0] # makes a series

e = d.drop(columns=['a'])
'''
a    1
b    3
Name: 0, dtype: int64
'''
```

#### Problem description

Drop silently fails on series. It does nothing when the user tries an impossible operation (dropping column from a series).

#### Expected Output

Error should be raised.
'Cannot drop columns from a series'


INSTALLED VERSIONS
------------------
commit           : 3e89b4c4b1580aa890023fc550774e63d499da25
python           : 3.8.5.final.0
python-bits      : 64
OS               : Windows
OS-release       : 10
Version          : 10.0.19041
machine          : AMD64
processor        : Intel64 Family 6 Model 140 Stepping 1, GenuineIntel
byteorder        : little
LC_ALL           : None
LANG             : en
LOCALE           : English_United States.1252

pandas           : 1.2.0
numpy            : 1.19.2
pytz             : 2020.5
dateutil         : 2.8.1
pip              : 20.3.3
setuptools       : 51.3.3.post20210118
Cython           : 0.29.21
pytest           : 6.2.1
hypothesis       : None
sphinx           : 3.4.3
blosc            : None
feather          : None
xlsxwriter       : 1.3.7
lxml.etree       : 4.6.2
html5lib         : 1.1
pymysql          : None
psycopg2         : None
jinja2           : 2.11.2
IPython          : 7.19.0
pandas_datareader: None
bs4              : 4.9.3
bottleneck       : 1.3.2
fsspec           : 0.8.3
fastparquet      : None
gcsfs            : None
matplotlib       : 3.3.2
numexpr          : 2.7.2
odfpy            : None
openpyxl         : 3.0.6
pandas_gbq       : None
pyarrow          : None
pyxlsb           : None
s3fs             : None
scipy            : 1.5.2
sqlalchemy       : 1.3.21
tables           : 3.6.1
tabulate         : None
xarray           : None
xlrd             : 2.0.1
xlwt             : 1.3.0
numba            : 0.51.2